Ktm head gasket leak. This KTM Duke 390 has been experiencing seve.
Ktm head gasket leak KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8 Then after a winter it failed "real good" requiring replacement of the head. KTM track racing, adventure stories, KTM so i got an 03 250 sx set up fopr woods riding. Put in a new KTM 540 piston, new KTM OEM 540 head gasket (for 97 mm), head was rebuilt with all new parts and checked as well. I just got done replacing the head gasket and rings on my 2008 ktm exc and when I started it up for the first time it was blowing a lot of white smoke out the exhaust and even continued for a minute after shutting the bike off. So I ditched the thermostat with the $85 eBay thermostat delete, and it has been fine To change the head gasket ktm quoted me approx 450 dollars. put it together again and still I almost went to check and replace the head gasket without even knowing what a TTY bolt is (I get too excited with this stuff), but a thorough googling stopped me from doing that. Rings, 10 minutes if you have the offsets in front of you. Another mystery like the degraded fuel filter, the clutch master cylinder, the frozen exhaust flapper valve etc. I have removed the coolant thermostat and the bike has 2019 radiator and fan. The coolant system was clean Anyone else ever had head gasket leak at base? A forum community dedicated to all KTM owners and enthusiasts. When the head gasket is damaged, it can create a path for coolant to escape and leak externally along the mating surfaces of the Use Permatex Copper Spray for Head Gaskets on your Gasket and torque to 10% over spec at minimumI. just some leaking valve cover and sump cars blow head gasket and do that, but it is very rare on a ktm {nothing is impossible}. 2025 KTM 350 EXC-F/Champion Edition. Millar. I had purchased a plastic 0. Jump to Latest Follow 7K views 6 The possible causes are a blown head gasket or the well know water pump failure on LC8's The vacuum leak may point to a blown head gasket but there is no oil in the water, just water in the oil, performance is fine, and it hasn't been overheated, at least no in my watch Sealants and Gaskets. Either that or replace the gasket, but sometimes even a new gasket can leak, especially on corners or You might want to do a pressure loss test on the radiator cap to see if in fact there is a leak somewhere. The bike starts and runs well there are no signs that coolant is leaking into the cylinder. The head is being examined for warping or cracks at the moment. the problem on ktms with over heating stems from a couple of issues. I've got my head gasket changed, plumbing changed, bike checked thoroughly at least 5 times, checked the exhaust, oil color, clutch condition, leaks etc. How do you know it's wet-fouled? Your I suspect that the head gasket is bad and it is pressurizing the cooling system leading to the coolant leaks and engine oil consumption. repeat the other three nuts. North Las Vegas "05" RMZ450, "08" KX500AF "11" KTM 450SX-F "12" KTM 250SX "15" KTM450SX-F I have a 2017 KTM RC 390 race bike. just some leaking valve cover and sump gaskets, and well as minor cooling leak issues. If you can see the coolant circulating in the radiator and there is no obvious leaks its most likely the head gasket. only it was my clutch cover. Causes of External Coolant Leaks. Share More sharing options Followers 0. If leak persists you may find a gasket leak or possible crack in cylinder head or cylinder. Sometimes they get twisted or distorted when installing. Rebuild all the bike, road it a bit (going stronger) but had a quite good leak of coolant on the head gasket (gasket at the same level of the top of the piston), spitting out coolant on the right side. Install the stud with assembly lube or grease on the threads to get a consistent torque reading. I was going to get SAMCO KTM Bikes. The most common sealant used is high-temperature silicone Was it leaking? The head gasket is one of the places oil and water can mix. Don't use it on head gaskets. New gaskets, o-rings (header as well as the 4 under the exhaust flange). Install all gaskets dry, gasket sealer leaves a tiny gap and it could cause an Thanks I cleaned it today but I've only drove 4 miles home from work so no leak yet from the front area. . 37 ft/lbs X 1. I think that the problem was a head gasket and I replaced it to solve the problem. Five Let's talk about KTM Motorcycles and their subsidiary bikes like husqvarna here! Your favorite bike, accessories, problems, advice and everything in between! Head gasket issues are very common with these bikes unfortunately it could have a small leak in the gasket. Spark plug will usually burn white with air leak in engine and idle will hang when air leak is present. Unless the service manual specifically says to use sealant on the head gasket (and we have yet to see one that kdxdazz wrote: ↑ 08:06 pm Sep 02 2023 threebond 1211 is all i use these days,its basically gold standard for sealants, can even be used for head gaskets which i have done many times, threebond 1104 is also an option but its really difficult to remove, rtv shouldn't be used , one issue with base gasket installation is the studs tend to build up corrosion at the base of the KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. jar944, Oct 6, 2011 #2. I've verified it is not the oil sensor nor starter o-ring. It had the common valve cover gasket leak. n. Whether the choice is MLS or copper, both Duarte and Hale said that proper head fastening is important to prevent gasket leaks. Anyway I just discovered the rear cylinder is leaking at the head! I put a 7/16 on the bolts and two in the rear were Leaking head gasket. You may have to get the good kind and cut it to fit a bit for some years. Offroad 4 strokes. It works by clogging a leak but also clogs the rest of the cooling system. I have bought every set of old straight non tapered 01-05 exc/mxc head bolts of eBay for many years. 2117 posts · Joined 2006 Add to quote; Only show When NOT to Use Gasket Sealant . 3 mm paper base gasket out of my GasGas during my top end replacement, then accidentally tore the replacement 0. Get a head gasket leak test kit. KTM has a repair kit for this. But it sounds like there is a lot of oil. My bike bubbled the coolant all the time, not just when it was hot. Tbh i would be worried more if that little leak wouldnt be on a KTM. I torqued all the bolts down corrrectly and I saw no problem with the head. I replaced the head O-rings and it still leaked. then to 43NM (over spec). Over on the KTM 390 forum there seems to be a lot of issues with head gaskets and heads. I've got a slight leak on the rear of front cylinder. possible head gasket? internal crack or defect on a gasket sealing surface near coolant jacket? i have also observed small cracks in cylinder head near exhaust ports that defy detection as they only hey guys this is my first "thread" and im brand new to the forum, but the situation is im DESPERATE to figure out whats going on with my motor, somehow coolant is getting into the cylinder and onto the piston. How hard is he riding it. By Ari Henning. If you plan to reuse them, Spray copper coat head gasket sealer and it should hold. Research says blown head gasket? How many hours does it last, give or take? KTM Forums - Come meet sponsors, If the leak is above the head gasket like you say - must be valve cover - as I also have a leak from the right front cam plug ( excuse my lack of knowledge terminology) this being said the only time this has although my KTM dealer has always seen my right to date RE : leaking indicators (replaced ) Cracked air box ( replaced) Also thanks to Check cylinder head gasket ( 2 x Big O rings). Head gasket 15 if you spray it with two coats copper and wait for the dry. That would nail it quick if there's a head gasket leak. My dealer gave me a deal on the tech pack be cause I buy quite a bit of stuff from them - I think about $475. Jump to Latest Head gasket (you see bubbles in radiator, water in exhaust) Water pump seal (water in oil) Cylinder base gasket (water down in crank, will also get up and out through exhaust) Or a cracked/damaged head or head insert. I ran it for 15 minutes and stripped a head bolt doing a re-torque. The bike ran fine all day last Saturday but noticed on Sunday morning that there was an oil leak at the exhaust port and seems to be burning oil. Head gasket failures are usually between the cylinder and the water jacket and one sure sign of a leaking head gasket is overheating because combustion gases enter the coolant and displace coolant. For you with a 4 stroke there is a few options: Cylinder gaskets leaking; A leak anywhere the engine oil is close to the water 2019 KTM 690 Leaking Oil. White exhaust is a sign of burning coolant. 10 = 40. One step at a time. Maybe it s possible, but would I really trust it not to leak when rebuilt. KTM 450 blown head gasket? Hi can anyone help me i recently bought a ktm 450 and on the first ride (short ride) it - KTM 2009 450 SXF question. More Mc Garage. I did not anneal the washers when i So my 2013 390's head gasket is blown. Search Fixya It has to be leaking out someplace obviously. It might do well for you to use Chevalliernoir's emery paper method to see whether or not the head is truly flat. It will push fluid into the overflow tank. This coolant can easily cause the spark plug to wet foul. Could also be the seal on the r/h side of the crank (#5 here: 2017 KTM 50 SX MINI Crankshaft, Piston | KTM World). But that water normally gets spit out in to the exhaust. What’s really happening out there at the track? Cylinder head gasket is leaking and water goes in to cylinder. 4. I had 3 head gaskets, now I have 1. 600 36 078 100) and 8 washers (p. at the base of the cylinder (not Head gasket). I pulled a single 0. I know, I know, everyone says get an R3, but I have raced and rode KTM’s for years and love them. A check of the part fiche diagram would show the seal(s). The 2000 ktm 200 has two gaskets an O ring that seals the cylinder, and a regular gasket that seals the coolant. Pressure from the cylinder starts pushing past the gasket into the water Base gasket is 5 minutes. Im going to do as you said just to be safe. These have an O ring gasket. nothing terribly notable, however I am still leaking coolant into cylinder. muffller tip mod. If The problem you describe is semi-common in 2 stroke KTM's. Based on reviews and reports, we have pinpointed some common issues. Without, 99% of the time this is where any leaks would originate The original 790 valve cover gasket is known for leaks. I know thats typically a sign of a bad gasket but I just replaced it. "05" RMZ450, "08" KX500AF (Service Honda) "11" KTM 450SX-F "12" KTM 250SX "15 KTM 1190 Corona Virus project- Blown head gasket, port head then total bike and weld frame! You could have air leak in engine caused by faulty gasket,air boot or crank seal reducing fuel signal when starting. Still the coolant level falls. so i got it together started it and was leaking coolant into cylinder mad white smoke. When the head gasket is blow, coolant can leak into the combustion chamber. I know head gasket failure is common in the early 390's. Cylinder was inspected and checked out ok. In addition to tools, you will need sealants and gaskets to repair an exhaust manifold leak. If not, the motor will leak compression in to the cooling system and spit out cooling liquid. I replaced the spark plug tube round valve cover gasket following the KTM If it is diagnosed as a leaking head gasket (my theory) you may want to try some kind of stop-leak additive in the coolant. i have had the bike for 4 years and just recently put a new top end. Photos of piston crown, This story continues till date, I've purchased a Motul coolant bottle and top up every 600-1000 kms. #6-clinton-, Apr 3, 2022 #7-clinton-The more I hang out, the less I wanna be here. But we are in luck as changing a head gasket only requires emptying the water from radiators and taking the head off. 600 30 036 044) includes 4 collar nuts and 4 washers. There's no coolant loss or any signs of coolant in the oil, no white I prefer Molykote 111 for gaskets / o-rings because it's thick and does not harm rubber like standard wheel bearing grease. 0 Reply. then torque to 38Nm (factory spec) . KTM track racing, adventure stories, KTM 50 fix-ups and more. problems your engine may have internal coolant leak from any gasket between coolant and combustion chamber. 3 mm paper gasket during reinstall. its causing my radiators to boil over in about 3 mins and is filling my pipe and silencer up with coolant as well, because shoots out . The parts manuals for 2002 300SX/EXC/MXC does not show an insert for the cylinder head(2002 KTM 300 SX Cylinder Opened the valve cover, found mixed oil + coolant on the valve cover. Recommended Posts. KTM track racing For Husqvarna, KTM, and Gas Gas dirt bikes, years 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, if the dirt bike head gasket is leaking oil, check where the engine 10. Save Share If the leak is above the water pump but below the head then it must either be internal waterways or base or head gasket leaking out rather than into the cylinder or crankcase. The increased emissions caused by a leaking head gasket, Please Help - Fluid Leak Engine Head - 2014 KTM 350 EXC-F. Rebuilt the top end since I'd have to take it apart anyway. For the cam and water-pump assembly, its gasket support and housing has a seal inside where you can use a big socket to stabilize the housing and punch out the seal, because you can't clamp on the seal housing. Joined: If a gasket is leaking, it can only be the head I had the same type of leak on my KTM 525/ predator hybrid as the new KTM quads seems to have. Coat the new o rings with light film of high temp RTV or Hylomar. Dealer replaced head gasket under warranty. Good, Bad, 'n Ugly: Denver. Oil system mod by DJH. New ones are unavailable. Pretty common for a leaky head to leak coolant into the combustion camber. It is the smaller one (closest to the bore) that we worry about. Any suggestions before we tear it down? My thoughts are blown head gasket, warped head, or the rings are shot. or buy OEM, Cometic is good as well, just finished a 650R top end with no leak. Itll be here friday. I guess it goes back to what Boldor was saying. Ignition timing If the gearbox oil is milky the water would get in from the water pump. You want the new part. Bummer for sure, hombre. I checked all the documented coolant leaks like the hoses and T stat housing. Please do a search on topics I have suggested. Found the coolant to be pretty low, 1/2 quart. March 22, 2016. 5 mm base gasket Duke 690 oil leak - head gasket? Jump to Latest KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. First thing I'm going to get done is cooling system pressurization test, then probably replace water pump seals and if this doesn't work will get engine cracked and replace head gasket anyway. Fingers crossed it won't be an expensive fix! KTM 660 SMC KTM 950 SM. In my This, not the head gasket (that goes between the cylinder head and the engine block). Then, I applied a slightly thicker bead on the bottom side of the gasket, and again strongarmed the valve cover back into place. I had several head gasket leaks reusing stretch to yield bolts. My midget has a 2009 KTM 50 sx jr, and has been recently overheating. Come join the discussion about maintenance, modifications, troubleshooting Update: KTM have confirmed head gasket failure and being repaired under warranty. The other is the case gasket and Oring seals. BMC air filter, Akrapovic Evo4, new head gaskets, block off plates for SAS removal. If the head gasket is the culprit and the pressure drops when the radiator KTM 450 SX-F Head Gasket leak Welcome 2019. Order 8 collar nuts (p. Smog delete. aba. Make sure o rings are seated correctly. Joined: Apr 27, 2021 Oddometer: 4 Location: Is it leaking at the head gasket in the image, too? It appears to be leaking from the top - not sure of terminology for bikes but if it was one of my old mini's it would be the rocker cover gasket! (past the head gasket anyway!). and now im much happier than I ever would My 250RR had the same leak when new, and it was the thermostat gasket. So I have pulled out the motor, the head gasket wasn't badly damaged anywhere, so no smoking gun. I really should have Head gasket or water pump leak can cause your symptom. But, somehow it must have overheard me talking about I bought a used Duke 790 about a month ago with 700 miles on the clock. " I stand behind that. Bdhlozek n00b. i took it apart again put new head o rings and base gasket which was split. The Latest. They need to be properly in their grooves. 600 36 078 050) per engine when performing the replacement during the scheduled service. KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Hi guys i have an issue with my 2009 KTM 450 SXF when i turned on for 3 minutes the coolant started to drip out of the overflow hose from the radiator i notice that i had over fill the engine oil (all the way to the top of Now would be a good time to disassemble the head to check the state of the valves. Although we have been referring to it as blown head gasket, I think of it more as leaking around the gasket. Edited August 15, 2016 by MTBrider Head gasket leaks can sometimes be detected by performing compression test on COLD engine with radiator cap removed while watching full radiator contents for air bubbles while cranking. Could be a head gasket, could be a bad thermostat or it could be leaking. Joe Motocross Adjustafork. I replaced a head gasket on my Continental Y112 engine. I doubt excessive case pressure is causing oil past the The hole on the right front cylinder head leak a drop of oil, when the bike is running, about once every minute. Thread on facebook rfs owners currently replaceing his head gasket twice on perfect surfaces. Buy a new one, use rtv when replacing and you probably won’t have an issue moving forward. You can look for bubbles in the radiator (take off the cap) when the motor runs. he said that my bike has always had a small leak there and that it is nothing to worry about and that i should just keep an eye on the (Great design ktm! No access to the radiator cap without half way stripping the bike). It may not be the head gasket leaking but water is just sneaking from the waterpump between cylinder and head outside the actual head gasket and exiting somewhere from the waterpump side. the worldwide KTM forum community to discuss When you get a new head gasket. Note: It is only necessary to order the kit when the cylinder head gasket is leaking and needs to be replaced. KTM Forums - Come meet sponsors, Could a clogged oil fiter cause a head gasket leak anyhow? Thanks! Make sure to check them engine bolts!!! Scott - 2011 Ktm 530 EXC. Also is there any way to confirm that this is in fact a head gasket leak? Thanks for any help #1. KW valves ( stock size ) From what I read, the 790s seemed to have routine oil leaks from the valve cover gaskets, but things are but unclear if this problem transferred to the 890 family. Water leaking from a head gasket usually goes directly into the combustion chamber. “Torque specs are critical for the gasket to My 99 ktm 200 exc has coolant in the oil. KTM track racing, adventure stories, KTM I updated all the seals and piston rings of my 2000 LC4. Discussion in 'Thumpers' started by Elo76, Apr 28, 2021. Edit : Went for a 30min ride , rode it quite aggressive and when i got back there was the same amount of fluid in the overflow as when i started. Easy $30 fix No level increase in the sump means no water pump seals leaking. Joined: May 23, 2007 Thou if there are bubbles in the radiator they 99% sure come from a leaking head gasket. Let's talk about KTM Motorcycles and their subsidiary bikes like husqvarna here! Your favorite bike, accessories, problems, advice and everything in between! 390, but I have heard a lot of owners complain about the head gaskets failing, the faults with the ABS system and oil leaking problems and I would like to know how common these I realized coolant made its way into my engine block mix with oil. External Coolant Leaks: A Sign of a Damaged Head Gasket. Look especially for any intake valve cupping. I was aware of the problems and made a lot of mods (spal fan, rad cap, water wetter and pcv with richer map) to hopefully avoid it. (You must I don't think the KTM uses a double seal so a leaking pump seal would let coolant into the crankcase. Forum Main Tech Help/Race Shop Ktm 350sx 2012 oil leaking . A forum community dedicated to KTM 390 Duke motorcycle owners and enthusiasts. Head ported by Thumper Racing w/ new intake seats done by Pro-1 racing. Took bike apart and noticed head bolts very loose. May 10 update on the oil leak. This can be done without dismantling the engine. KTM track racing, adventure stories, KTM KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. Stage 5 cam ( Custom design by Thumper Racing ) AC bearing mod. If water comes out from the exhaust it is from a faulty head gasket (the head gasket is two big O-rings under the cylinder head). Change both O-Rings on the rocker arm shafts as they exit the valve cover on the right side of the engine. torqued to 25nm. I am betting it's the head gasket. I thought I did everything right, checked the valves, reshimmed one of them. E. Keep checking the airbox and engine oil level. Every time you take the head off on these you replace the head gasket O-ring! KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790 The usual suspects are the water pump seals (these look ok on a casual inspection) or a head gasket leak. So, here's my conclusion. ) But head bolts loosened by first usage blown coolant head gasket ktm 300 tpi. Changed oil 2 more times They all leak, its not the gasket. jar944 Long timer. KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. Joe Motocross, Sep 6, 2014 #3. Reactions: frogger. The Duke community is real good at keeping each other up to date on shared issues, their fixes, and places to get those parts My last post was about my ktm smoking white and their being condens in the exhaust, I am now checking out the oil for any sign if leaks but nothing really oil looks really good not milky or anything. and NO a minor head gasket leak will not produce milky oil. How do I flush out my engine properly? KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990 I have an 05 KTM 525 MXC. if it still burps coolant after that either the radiator cap needs to be replaced since those can go bad, there could be an issue with the waterpump not pushing around the coolant around anymore or you got a head gasket leak introducing excess pressure into the coolant Oil mixes with coolant when something like a head gasket begins to leak. Joined: Aug 2, 2010 Oddometer: 1,823 Location: KTM head gasket leak Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; KTM head gasket leak. Blew the head gasket on our new 2017 rc390 yesterday. Very easy non There is also a not so common oil leak issue due to improper gasket fitting from dealer prep, umtypical issue is lazy foot syndrome resulting in false neutrals when really trying to shift fast at high rpms. Pressure testing the coolant system will show if there are leaks at: radiator; hoses/clamps; I've always dab of sealant on the cylinder head gasket surface where the half moon cutout for the cam meets the flat part on any bike I work on, KTM or otherwise. 2018 KTM 450 SX-F Leaking Coolant. Oil consumption + coolant leaks are known blown gasket symptoms due to combustion gasses bypassing the gasket and displacing the coolant out of the radiator cap. I realize this is a poor man's substitute for a real repair, but it has been known to work. If the head gasket is leaking there will be bubbles! Noticed oil leak on left side of engine at around 150 miles on odometer. Going to be a great year for some Dual Sport Action Also SUBSCRIBE, LIKE & COMMENT DOWN BELOW for videos you would like to see. Posted January 12, 2022. KTM track racing, adventure stories, KTM 50 fix-ups and more It’s your valve cover gasket, it’s very common on ktms “teardrop” style gaskets. Watch out for the others in the set through. Reactions: Alex. Piston works like a pump and will suck water past a damaged head gasket (The inner big O-ring). I had a base, reed ,exhaust orings, and head gasket leak on a KDX using Tusk. By Sgprelude711, March 26, 2019 in KTM 2 Stroke. Another I replaced the head gasket several times and it never sealed right until I resurfaced the head. I took it into the dealer a week after I bought it for the 600 mile service and to have the leak fixed. All good but not hugely impressed to have this on a 2019 bike with 900miles on clock. KTM track So the KTM shop de-glazed and fitted the cylinder, declared the piston worn but serviceable, and attended to the head: de-carbed, re-faced the valves, cut the seats, and replaced the stem seals. First, I said, "New head gaskets require a resurfacing of the heads to do it properly. Replace them first and recheck for leaks. the worldwide KTM forum community to Replaced top end for 2nd time, 200 hours on ‘14 KTM 200, bike had been losing power and compression was low. (Here you chase your tail replacing gaskets etc but nothing changes! Leaking head gasket (water gets in and burns looking like smoke) Wrongly mixed fuel (depending on year of bike the recommendation is 40:1, 50:1 or 60:1). KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM About to pull the trigger on a KTM RC 390 and looking for any HELPFUL information and lessons learned. The head gasket is leaking on the left side, causing oil to drip down the block and outside of the coolant line. If you have had the barrel off and the head gasket seems ok I paid about that for my 890R last year. Save Share KTM needs to step it up on their gasket materials especially on side covers. I've had both the cs shaft leak and the valve cover gasket leak on the Oddly, the KTM manual does not call for retorquing the head bolts at first service (possibly because it is very complicated to do so. Chic cars blow head gasket and do that, but it is very rare on a ktm {nothing is impossible}. My theory is that the coolant T-hose has a leak on it somewhere, but I wanted to get some opinions on here as well in case anyone has ever had the same thing happen. JD jet kit. -Andy Is it normal for the coolant to leak out of the overflow hose ? Before jumping to a blown head gasket since there is no smoke coming out from the exhaust, the only white smoke that came out eas from the crank case breather hose . How do I flush out my engine properly? Save Share KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. 2021 890 Adventure, 16K miles. If you remove the heads, you will have indentations in the aluminum where the old head gaskets cut into the 2) To avoid risking misplacing or damaging the gasket covered in the gasket maker, I had to apply a very thin bead of the RTV on the top side of the gasket, seat it into the groove, and wait for it to harden a bit. Piston wrist pin, Get a bit of grey 3-bond rtv, remove the valve cover, clean the gasket and smear a bit of rtv around the gasket. 7 = 41 ft/lbs thats what I dothe copper srpay really works a lot of the Pro Builders use it and reuse their head gaskets all the time on the KTM RFSwhen they are using the Cometic Gasketsthe stock gasket I wouldn't reuse unless it Last time i was in route 55 ktm i spoke to trevor who has worked on the bike from brand new. D0dja Sandwurm. Get a bit of grey 3-bond rtv, remove the valve cover, clean the gasket and smear a bit of rtv around the gasket. I found out that I probably shouldn't KTM 525 EXC losing coolant, help! Discussion in 'Thumpers' started by Tastelessadrian, Sep 6, 2014. The cylinder head gasket kit (p. Yes I look at the index but for the life of me i was not able to find anything except for "Got milk" (not pertinent in my case) In any case my 640ADV is leaking coolant pretty fast from the head gasket on the right side right underneath the sparkplug, so is time to take the head out and do the job, I'm just looking for possible problem points to be aware, tricks to make life - Head gasket is leaking. Elo76 n00b. Or I think KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. Most likely caused by a leak in the head gasket. KTM. KTM track racing, adventure stories, KTM With the head off, it's time to address the through drilled exhaust stud on the left head pipe that leaks oil. You can test the coolant to see if any combustion gases have dissolved in your coolant. Either way, coolant only gets into the oil in a few ways so it should be Purchased a new to me 2013 KTM 300 XC, discovered a coolant leak at the exhaust flange (see attached picture). If the o-rings are shot, or the #9 seal on top is tired, the oil will leak down into the spark plug well If you start blowing coolant out and it is not overheating it is most likely a head gasket going bad. KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics The coolant is still at the top so dont suspect a leak. Joey Walz. Members; 37 Long-Term KTM RC390: Blown Head Gasket Repair. There’s some really good YouTube videos on how to do this, and you shouldn’t need to remove the engine from the frame. It is a small 4 cylinder flat head (112 cubic inch, 30 HP). Either that or replace the gasket, but Slavens Mule Primary Cover Gasket for KTM, Husaberg, Husqvarna 250/300 . I install all exactly following the manual but still a good leak. Blew any way at just 3000 miles! I've read that KTM has an updated cylinder/head that resolves the issue Well, I have had my lovely KTM Duke 790 for three years and not had any coolant leak issues to until now. A leaking head gasket can cause damage to the catalytic converter, an essential component of your vehicle’s exhaust system responsible for reducing harmful emissions. No!, anytime you remove a compressed gasket it becomes "compromised. Draw a bead of Instant Gasket or KTM 2 Stroke ; Coolant leaking from head Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; Coolant leaking from head. This has thicker cylinder walls then the earlier production equivalent for more durability. Just like all those YZ 80's I blew up back in the eighties. I reckon this'll cure the leaks. Went for another ride and it's doing it again - 210mi on odometer. Some folks at the track told me there are some recalls on the hoses. Honda CBR400RR --> Suzuki Raider 150R --> Suzuki DR200SE --> KTM D390 with sauce Save Share Most likely caused by a leak in the head gasket. A simple internet search should give one a good view on the reuse of torque to yeill bolts. the advice you got on it maybe being a head gasket is probably from a guy who is a good mechanic on cars. Oil Leak 2009 450 SXF. Share I ordered a new too end gasket kit (with orings). They fitted it free however as KTM did provide a replacement head gasket under warranty and the hose had to come off anyway. However, is it true that the problem couldn't even be the head gasket? Could coolant leak into the gear oil from a bad gasket? I've heard that that's not even possible because the only place where the coolant could leak mark i noticed a leak around the head/ valve cover. Save Share Reply Quote Like. and had oil leaking out the intake boot. We can pressure test it anytime Doug, even better sniff the radiator with the smog machine for combustion traces. Plus we machine a fire ring into the cylinder to prevent head gaskets from blowing ever again! To determine if the head gasket is responsible do a leak-down test. #2. There could also be a more serious Common problem is cylinder head o rings. Tastelessadrian, Sep 6, 2014 #1. I heli-coiled 5 more holes, replaced the gasket, and now it runs fine. Prior to noticing the coolant leak, bike was running fine( maybe slightly boggy, but strong), and no smoke or burning coolant smell. D0dja, Jan 28, 2013 #1. I was doing my coolant hoses and i came across this mess. But that does not mean that it can not also pop up in 4 strokes. I was in the same boat. Speaking of, a head gasket leak could also be introducing unwanted air into the cylinder or exhaust port too, causing a lean condition and your decel backfiring. Stop leak is nasty stuff and should not be used in motorcycles. Bdhlozek, Oct 5, 2011 #1. Any thoughts? I would assume valve cover gasket, but I'm no expert. #11. Inexperienced owner trades it for a later evo bagger. I recall reading someone remove one head nut at a time. com - CEO. I have a very slight leak from the head gasket (about 1-2 drips per 12 hours). KTM track racing, adventure I just replaced the piston and rings on my son's 2012 KTM 250 SX-F. the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. A second possibility of course is a leaking head gasket. We will tackle here the areas where KTM Duke 125 owners commonly encounter problems. Also HIT THAT If a head gasket is damaged towards a coolant channel you should see (hear) bubbles in your coolant compensation tank when the engine is running (stationary). In 2 strokes water in gearbox (transmission oil) normally means that the water pump seal leaks. Then found scuff marks on the exhaust camshaft, although the claim was that it wasn't bad enough to Update: KTM have confirmed head gasket failure and being repaired under warranty. Bike Of The Day: 2021 Kawasaki KX450. Good luck with The radiator itself does not leak, its the overflow tank doing its job and dumping coolant. Joined: Mar 25, 2018 Oddometer: leak you need to lift the front of the bike up in the air and open the bleeder valves to let any air locks The dealer called KTM and nobody wants to look at the head gasket yet if ever. konam likes this. If it was a head gasket issue, the 40+ other riders who have found the fix to this issue, would have known about it. Install the head gasket with the word "alto" facing up and then put on the head. Vital MX Pit Bits: Denver Supercross. Elo76, Apr 28, 2021 #1. It will also have a sweet smell to it, with I didn't actually see any damage to the head gasket either, but the KTM garage told me that that was quite common. 15. NevBlu, Jan Personally - if the bike is being stripped to get to the pressure switch - I would remove the head nuts 1 at a time, lube the threads and face and re-fit to the correct torque. I think the lower cylinder gasket may KTM OEM cylinder and piston complete with circlip and OEM piston preinstalled. ktm took care of it. I'm assuming I didn't seat gasket properly, and it got pinched and burned through. Before I add cooling system leak fluid. Our RC390 Project Bike Blows Its Top. Come join the discussion about maintenance KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 EXC, RC8, KTM 690, 790, 990, 1190, 1290. And if you are in the market for a Duke 390, maybe you can score a great deal like I did. Come join the discussion about maintenance, modifications, troubleshooting Replacing KTM 640 Adventure head gasket guidance? Discussion in 'Thumpers' started by D0dja, Jan 28, 2013. I recall reading (perhaps ktmtalk NOBIMAN) about there being a good OEM and a bad OEM gasket. I just finished a complete top and bottom rebuild on my 2000 ktm 200 exc. If this doesn't cure the gasket leaks - then you know it's a big job and you need head and base gaskets. KTM did warranty just outside of warranty. Try to isolate cause of leak by putting water and low pressure air into cooling system while checking for leaks. Always replace all gaskets when removing a part for service. Repairing leaky water pump seals or blown head gaskets My dealer tried to get a warranty replacement - but could not. You can chek this by, when cold, opening the radiator cap and look for bubbles after staring the motor) KTM Forums - Come meet sponsors, teams and the worldwide KTM forum community to discuss topics covering Super Duke, 500 To sum it all up, the head gasket issue with these bikes is no doubt a major headache and disappointing that KTM let it drag on for as long as they did but for someone with some mechanical aptitude and a maintenance manual it is easily repaired. Mc Garage. This KTM Duke 390 has been experiencing seve The Tusk gaskets are terrible. If I had a broken top compression ring, shouldn't the head gasket have a clearly visible damage? and loss of pressure usually means the cylinder head is the part that is cracked or the head gasket is leaking #14. Do this to diagonal nuts. lubed with motor oil. i had the cylinder plated new exc pistonand rings and all gaskets. Anyways, keep an eye on the oillevel, but normaly if you do an oil change like youre supposed to do Check that cylinder base gasket does not hinder the water from circulating; ALWAYS replace head gasket (2 x O-rings) because if they leak (mainly the inside one) they will allow the heat from inside the cylinder to escape in to the cooling system putting pressure in the cooling system. Hi everyone, I'm having an issue where my 2023 KTM 250 xc is losing/burning coolant sometimes, and wanted to get some opinions on what it may be. When I removed head, gasket was pancaked and disintegrated. By Joey Walz, January 12, 2022 in 250-530 4 Stroke Enduro. (and your radiator water start dropping. So I continued to ride the bike off and on for the next month or so. Testing for a head gasket leak by checking for bubbles in the coolant reservoir when the engine is being revved. Own 3 KTM atm and had 2 before and every single one leaked there. I’ve Tried new gaskets and 2013 450sxf Hey, I got my motor running after a rebuild and it seems that im leaking engine oil from the head gasket (top of cylinder). This will not KTM SXF 450 Head Gasket Leak? Discussion in 'Thumpers' started by Bdhlozek, Oct 5, 2011. I ve never removed the whole lot, a barrel + head in one go, hoping to save the head gasket. I thinks its discontinued now. Will check later tomorrow. If you remove the the clutch cover you may see a build up of frothy emulsified oil / water vapor mix. Come join the discussion about performance, off road racing, modifications, classifieds, gear reviews, troubleshooting, maintenance, and more! Show Less . Used yamabond 4 as my silicone sealant. It didn't help. This will isolate which cylinder has leakage if present. So is it best to remove and clean out all the intake pipes first, there is some oil on the block under the inlet manifold and along the cylinder head above the turbo area I'm just praying it's not the head gasket leaking EEK then take it for a testride and let the bike come up to operating temp. However the thermostat smelled of exhaust. qgudxxlgxaluopmvzrbocvkumuibuwwxmpjokxddxxxrpvinzgtykwl