Max rpm johnson 150 In this video from Boats. If the propeller has too much pitch, the motor will not reach its optimum RPM at WOT, while a prop with too little pitch will exceed the recommended RPM limit at WOT. Changing to a stainless prop would probably pick another hundred or so rpm. What should I be running as my max RPM trimmed? I don't want to run her too hard but want to get all I can without abusing it. the only information we have, is the powerhead was rebuilt in 2007, but was stored from then to about 6 weeks ago. Jun 26, 2011 · The manual for my Suzuki 115HP outboard engine says the operating rpm is 5,000-6,000. Sep 8, 2024 · Role of RPM (Revolutions Per Minute) in the Functioning of a Boat’s Outboard Engine Before we dive into solving the issue of a 2-stroke outboard engine not reaching full RPM, it’s paramount to grasp the significance of RPM itself. The most common issue is that a boat won’t go over 3000 RPM under load, even if it used to go higher on full throttle. 88 - 91 would be excellent in that case. Aug 7, 2021 · RPM issues are common even with the best engines out there. You may ignore any letters before the horsepower designation, and those after any of the following model numbers that match yours (e. Jan 8, 2003 · Re: Max RPM for Johnson 150? Set it up to turn 5800 with an average load. Jun 28, 2010 · Re: 1991 Evinrude 150 xp4500 max Rpm Thank you for your reply. Mar 10, 2008 · Max RPM for 2002 175 Johnson? By DanCard in forum Evinrude/Johnson Motors Replies: 1 Last Post: 12-01-2010, 04:55 AM How to Perform a WOT RPM Test in 3 Steps Because propeller pitch plays such a significant role in the performance of an outboard or sterndrive, it's necessary to run a Wide Open Throttle (WOT) test every time you fit a new propeller. First time we took it out, all was fine with getting it to the ramp and launching it but the cranking battery was d Great engines, but seem to have a common problem. Usually with a minimal deposit, they will lend out 2-3 different props to Feb 4, 2022 · Is your outboard motor not running at full power? Discover common issues and solutions with Rev Tech Marine, serving Virginia Beach and Hampton Roads. The motor came with a raker 24p 14-1/2 dia prop. The Johnson 150 outboard has been a popular choice for boaters, converting impressive power output with smooth performance and durability. Hoping to reach close to 50 mph. wxm said what is your max rpm trimmed out- keep in mind if you up in pitch you go down in rpm-if you go down in pitch you raise rpm (either way its approx. At less than that you start to run into premature wear and failure. Jun 13, 2023 · 1997 Johnson Fast Strike 150 J150GLEUC 1997 Stratos 282FS. You are going to have to settle for the 5000-5200 range with a typical load, and you are only going to get there with a good SS 17 pitch prop. So my question to you is what is your Max RPM and at speed? I had a lot of barncales on the bottom that I cleaned off. Why the WOT RPM Test Matters All outboard and sterndrive motors have a wide-open throttle (WOT) rating, as determined by the manufacturer. We took it out for a test ride with the previous owner and it ran fine. It includes an engine, a gearbox, and a propeller or jet drive. 9 and 115 above HP O/B. Copyright © 2025 MH Sub I, LLC dba Internet Brands. ( 181 ,9 kg) Test Propeller Minimum Test RPM Weight 4500 to 5500 RPM 150 - 150 HP (112 kw) 175 - 175 HP (131 kw) 5000 RPM See Page 1-35 ()tiC P/N 387388 Aug 16, 2000 · Your's sounds just like my 2000 115 Johnson. All times are GMT -7. 8 - 12% is more typical. Now my dad has a 2001 115 Johnson 60 degree motor. Replaced the bowls and rebuilt the carbs with OMC parts. Were these strong reliable Jun 15, 2011 · My 1996 150 Johnson Ocean Runner RPMs are topping out at about 3800-3900 RPMs. Feb 19, 2019 · Another question on the new to me Johnson Fast Strike 150. Performance Boating - Manufacturers specs. We would like to show you a description here but the site won’t allow us. Jun 2, 2025 · When your outboard will not throttle up, there’s plenty you can do to fix the most common issues and improve performance once and for all. Use of this site indicates your consent to the Terms of Use. I have used it a couple of times and am struggling with the opitum RPM's. Boat is new to me. ( 179,6 kg) 401 lbs. I saw this thread from awhile ago concerning propping issues on a ranger with a johnson gt 150. Talk with a local marine service shop. Any help would be appreciated!!! Thanks :cool: Jun 26, 2014 · I don't know specifically for that engine, but generally the Johnson outboards max WOT RPM should be between 5000 and 6000 RPM. But for now load the boat like you want, put water in the live wells to simulate a full T load and put your buddy in the boat and run it and see how it does. rpms drop a little then pick up then down then up. 3. My question: is there an "optimum" operating rpm for 1. Did your boat originally come with two engines? If not, what is the 150 replacing? What is the max HP rating for your boat? You have to treat your setup as brand new. 1996 Johnson 70-HP Maximum Engine Speed - Moderated Discussion Areas 150 only turning 3900 rpm max while burning 16 gallons per hourHi Jason, It is a 2001 Johnson 150 model J150VXSIF The motor is new to me, no prior experience with it. <br /><br />Good luck! Jun 10, 2005 · 150 Fast Strike RPM range My father's boat has a Johnson 150 Fast Strike on it. Always use fresh 87 octane and Champion plugs and you should be good to go. I haven't found any info as of yet. engine longevity (less wear and tear)? Is the engine more likely to overheat or break down if operated constantly at the max rpm and is is Jun 15, 2023 · For years, Johnson Outboard Motors has been a staple in the boating community due to their reliable engines and strong performance. Outboards move the boat forward and control the steering by pivoting left and right. The prop seems well matched. What can I do to increase the RPMs. With the SS OMC, I'm able to top out at about 45 mph @ I am trying to get my 98 Seaark zx200 and 98 Johnson 150 (model J150ELECD serial # G04476190) tuned up and setup. Tail wind it will plane and max out at 4000 RPM. I can only get top speeds to about 25-30 Jul 22, 2019 · Your tach and gauge lights not working makes the initial diagnosis more difficult. 55 mph is the fastest this boat has run by gps since I have owned it. Jul 8, 2002 · Anyone know the Wide-Open-Throttle RPM stat for a 1998 150 Johnson FICHT? I need this for a prop replacement. I'm concerned about the RPM's topping out at 4200, with a top speed of about 30 MPH. This seemed a little low to me. They reccomend you be proped to turn close to the max rpm stated in the manual. I've been running it at about 5800 for the past 2 years. First thing I noticed was cracked and warped carb bowls. The fuel is fresh rec 90 She is premix I have already done the following: Rebuilt all 6 carbs and adjusted floats replaced all 6 coils and power pack, along with wires New spark plugs gapped correctly Checked buttery on each carb We would like to show you a description here but the site won’t allow us. What size and model prop are these guys running. I'm guessing they were probably going 30-35 mph as the "whip cracked". May 2, 2013 · Re: WOT Engine RPMs and Prop Pitch for Rebuilt 25 hp Evinrude Your motor's rated horsepower occurs at 5000 rpm. Prematurely hitting the rev limiter. the book says 31-33 I moved it up to 32*. ( 175,1 kg) 396 lbs. to light load. See what the factory recommended size and pitch are and compare it to the one on your boat. However, as with any engine, Johnson 150 outboard owners may face issues that require … Johnson 150 Outboard Problems: Top Sep 25, 2009 · I second that of champion, i have a 94 150 fast strike, and if your turning over 6000 rpms your headed toward gernading that engine really fast. #outboards #evinrude #outboardnation #diy #j. <br /><br />Good luck! Sep 21, 2025 · Johnson 150 won't hit max RPM Board index » GENERAL » TECH TALK All times are UTC Page 1 of 1 [ 8 posts ] Previous topic | Next topic Author Message Chargerwilly Posted: Mon Jul 21, 2014 4:31 am Jul 7, 2010 · HI All, I am trying yo get my motor rigged right, so what is max rpm or best rpm to run 2000 johnson J150plssc eagle motor? Thanks allot The Evinrude Intruder 150 HP is almost identical to the Intruder 175 HP except that it has a 150 horsepower engine. if you want to have that engine around for a long time i would recommend keeping it at 500 rpm below wot. i run mine at 5000 Aug 12, 2014 · What's the recommended RPM range for my 1990 150 GT? Currently on 15x17 aluminum stock prop spinning at about 5200 rpm. checked my idle timing at 6-8 dtc and was right on money. RPM THIS MOTOR IS TO BE RUN WITHOUT HURTING IT??:cold: :cold: :cold: Aug 11, 2010 · 1998 Johnson 150 hp (model # J150ELECD) running steady at 1800 rpm max in the water, runs 4. It's a 1993 model J150GLETG. ford4x4guy19 Member Join Date Jan 2009 Location Green Bay Posts 3 #5 02-01-2009,10:00 AM RPM Range Chart - Free download as PDF File (. Watch to find out why. 150 four stroke, the best fuel economy, ie. 5x19 SS I'm at about 4900-5000. I have been following it to the best of my ability. I'm looking for top speed performance. May 13, 2010 · Re: 89 Johnson 150 v6 gt with VRO The point is to compare what the max rpm's are currently with what it did before. I currently have a Viper 3 blade sst prop on it. 86 to 1. Temp that day was 85. it did this a couple time last fall and I wrote it off to a jet sticking, and or cold weather. But the seams to be a We would like to show you a description here but the site won’t allow us. support line on the evinrude web site and the tech. 75 VF 250 V Max SHO 4-Stroke 5000-6000 1. Less than 5000 rpm and you're not developing full power. Check out possible reasons here. Idle seemed fine before. Why is your outboard not reaching top speed?Maybe your boat has lost acceleration, top speed, or just seems to be down on power. If you went down to a 17" pitch, you're engine would turn in the neighborhood of 5700rpm. Wheel 14 3/8 X 18 This will give 42 mph by GPS. Wide open throttle RPM range chart for Johnson powered boats. When running on a flushette, the idle rpm for the different shaft length engines are as follows: 20 Why a boat won't go over 3000 rpm under load? This is an indication that it hasn't been maintained properly. Jan 10, 2016 · I have a 1995 150 hp Johnson Outboard motor (Model # J150ELEOM) that continues to over heat only wen it reaches 3900 RPMS 35 Miles per hour. According to the engine test of the Yam. I am getting 50 mph on GPS at 5000 rpm with a four blade turbo prop that is 13 3/4 x 22. New problem. Does anyone know what the Max RPM should be, or a link to find out? MODEL YEAR CHART 1980-1999 75 HP - 150 HP To sort chart by column (Year, Model, etc) click on the desired column heading. The time now is 02:12 AM. The motor does not over heat if it doesn't go over the 3900 RPM range and when it gets to 3900 it don't overheat Jan 25, 2006 · Re: wot rpm Evinrude 150 hp Mod. E150GLEOM I have a 1997 johnson 150 and max rpm in the manual states 5500 rpm. we ran the motor for about 2 miles to our fishing hole and no issues, fished for a hour or so, then started motor to go to the next fishing place and from the get go it would not go above 3000 rpm. 25‐30 Horsepower ‐ Evinrude/Johnson (4 Stroke) 25 HP 4‐Stroke 2004‐2007 Oct 17, 2010 · I just got a bass boat, an 89 Ranger 364V with a Johnson GT 150. g. Feb 15, 2012 · WOT on a 2001 Johnson 150 Ocean Pro 2 Stroke 1 reading Jump to Latest 9. 14 1/2 x 22 Rebel prop. The WOT rating is the RPM range the motor should achieve when the throttle is set to maximum. Since yours is a ski/wakeboard boat, the previous owner may have increased the pitch for more holeshot, which would decrease top end speed. water pressure on 2000 johnson 175 hp doing setup on 2000 Stratos 283 vindicator raker 24 7. ENGINE RPM CHART EVINRUDE® E-TEC® RPM CHART JOHNSON® RPM CHART HP/Model 25 HP 25 HP 30 HP i have a 1998 cajun 2100 with a johnson 150 ocean runner boat is heavy and all i see is about 36-37mph wot. Short of a bass boat or lightweight skiff. pdf), Text File (. 2002 Johnson Outboard Motor Prices and Values Select a 2002 Johnson Outboard Motor Model Select a boat year and model below to get a valuation. So far 5000 RPM has been my max. Mine pushes a 1700 Fisherman at 44. will tell you for sure. Runs nice at 4k rpm, no miss like before. Powered by vBulletin® Version 3. Jul 29, 2002 · Re: 1989 Johnson 150 V6 GT Max Rpm's I would try for around 5800 with an average laod. if you have a good prop shop in your area give them a shout sometimes they have props they will Mar 19, 2020 · Let’s look at the Yamaha 150 VMAX SHO, Evinrude G2 150 HO, and Mercury 150 Pro XS. The "skeg," or bottom flap, can also act as a rudder Anyone know what the max rpm on a 04 150 johnson is. In this article, we will explore these various factors and help you determine the optimal RPM range for your outboard motor. RPMs – How to adjust RPMs with the correct style, diameter, pitch propeller. My questions is this. WOT for my 195 CC w/ T-Top is 58-5900 RPM turning a SS four blade Mich. 150, 155 - 4500 RPM 175 - 4800 RPM 381 lbs. Sep 28, 2018 · So the original thread about a WOT problem is at the link. Into a 10mph head wind boat won't plane or get above 2500 RPM. The Johnson HP 150 is a type of outboard motor, which is a self-contained propulsion system used by boats. Does this outboard have a rev limiter? If so where is it set to come on? Oh, by the way, it's a 1991 model. ( 172,8 kg) 386 lbs. Mech says should be between 5000-5500. You are probably overpropped for your application. What is the max rpm ? Dec 22, 2016 · A handy chart put out by Michigan Wheel that shows what your wide open throttle range should be. 1998 johnson 150 max rpm at WOT? - Moderated Discussion AreasHop to: Re: 1996 Johnson 150 Max RPM (Karas3434) 5300-5500 rpm is the best for all around performance. By the end of this guide, most of our readers should know exactly what is wrong with their boats! Jul 20, 2013 · With the 150, I was between 4000 and 4500 rpm and that was FAR better tubing than the 115 was at nearly 6000 rpm. I think they idle around 1000 in neutral and drops to about 800 in gear in the water. The exception to this rule would be the smaller horsepower engines, usually the smallest up to about the 25hp class. With my OMC 14. I have a 19ft Cape Horn Center that is 2200lb dry and holds 80 gal fuel. The boat if you are not familiar with it is a 20ft aluminum boat. Sep 2, 2010 · Re: 1996 Johnson 150 ocean runner RPM Thanks for the answer, My father in law purchaed the boat in January, the person he purchased it from had passed away suddenly. Seems to be in good shape, starts right up and runs smooth. A boater who isn’t sure what the manufacturer’s recommended RPM range is for his or her specific motor? The answer is just a Google away. Aug 7, 2009 · Max RPM Continously If seas permit, I will run around 4000-4200 RPM. Edit - Didn't answer your question. net Mar 18, 2002 · Re: Johnson 150 Fast Strike Reply to Dhadley - no problem with boat getting up - boat tachs to about 5600 RPM - the Evinrude XP 150 on the other boat was a bit sluggish out of the hole, but once planned was lightning fast all the way to max RPM - the Fast Strike takes more time & a little slower (3-4mph)<br />reply to CAPTBLACKSMARINE - the Stryker isn't built anymore it was locally built in Jul 30, 2015 · I think you will find very few 17’ hull setups with a 90 Johnson that can turn 5500 rpm. An inch of pitch is 150-200 rpm on average when dealing with props of similar design and same material. mpg is 3,600 rpm. I have never owned a 4 cylinder two stroke Johnson. 3K views 22 replies 7 participants last post by Kwest Mar 2, 2012 Apr 23, 2020 · 2001 Johnson 150 J150PLSIF sudden condition Condition: WOT was 5250 with 14. Looking for weight, RPM max etc. Jul 24, 2011 · Re: Johnson 150 WOT issue, maybe?? here we go again. Took it back to the shop and Re: 2004 Johnson 150 2-Stroke (ford4x4guy19) The carb motors like to idle with the engine level, then trim it all the way down just before blast off. Sep 25, 2003 · Re: 90hp Johnson Speed/RPMs If it was mine, I'd turn the engine about 5800rpm so you need to go down in pitch. Did the motor seem to hit a max RPM point no matter what you did with the throttle? I've read that in SLOW mode the motor shakes like something else at the 2,500 RPM limit, but below that feels fairly smooth. Is this max rpm ok?, or should i consider a new prop?:confused: Aug 1, 2009 · I have a 2001 150 hp Johnson 2-stroke 6 cylinder carburated motor. efficiency? 2. Jun 12, 2003 · Re: 93 Johnson 150 - RPM/Compression I understood those 1990's Johnson loopers had low compression, it is the way it is designed from factory. All rights reserved. The motor will safely turn higher than that but the steel (stock) reeds start to flutter at somewhere around 6300. But the one i am looking at is much wider not sure of the degree or if it is Cross flow, Loop charged etc. VF 150 V Max SHO 4-Stroke 5000-6000 2. The document contains Yamaha, Suzuki, Evinrude, Johnson, Honda, and Mercury outboard motor RPM range charts. 9. Jun 10, 2005 · Johnson 200 Max RPM Rusty, I've seen several posts that say the Max rpm for the Johnson 200's is 5000-5500. Learn all about boat propeller fit with our Boat Propeller Fit Guide. The biggest selection of aftermarket propellers in modular or traditional hub styles. RPM ranges, pictures, videos and part numbers. I just readjusted the cab butterflies, lowered the maximum throttle screw, connected all six plug wires to sparker, pulled plugs and at wide open throttle the max spark advance was 26-28* above dtc. The WOT rating is the RPM range the motor should achieve when running at wide open throttle. the engines MAX rps should be at 5500 rpm, no more. Detailed Johnson propeller charts with hardware. What is max RPM's and what would be the most efficient cruise RPM's? It seems 3500 sounds good. Because the prop has been on the engine for years does not mean it is the correct one. 00 VF 200 V Max SHO 4-Stroke 5000-6000 1. 250-300 rpm per inch) most will agree ( I hope) one prop is hard to get to do both jobs. Dec 17, 2013 · Re: prop pitch johnson 150 1999 Prop calculator indicates about 4% slip possible but unusual. 9 Patch Level 3 Copyright ©2000 - 2025, Jelsoft Enterprises Ltd. wot rpm's all the time kill outboards unless they are race built engines. Wide open throttle RPM range chart for Evinrude powered boats. Sometimes its the simple things. its a 2005 johnson and since the What are the max RPM's on a 2002 175 Johnson? I recently got one and am turning it 66. your 6 HP model # BJ6R4SOSM would match 6R4SOS in the chart, ignoring the " BJ " and " M ") Oct 21, 2014 · I was running at 4500 rpm and my speed was at 48 mph and water pressure was at 26 psi. They are #69s Apr 7, 2008 · Hi guys, Been trying to find some info on 1987 150 GT. Med. My top speed Feb 23, 2012 · Re: 2000 Johnson 150 Ocean Pro Surging (fmoore) Try it with a portable tank, just to eliminate the boats rigging besure the vent is open on the portable tank. My clymer book and a couple of other sources say it can spin 6000. This engine was introduced in 2012 and was benchmarked with the outgoing 150 HDPI and exceeded it in most performance measures, according to Yamaha. Jun 2, 2025 · Frustrated with your outboard motor not running at full power? Here's all you need to know about these issues and how you can resolve them. It is a six-cylinder, two-stroke outboard motor with a maximum rpm of 5500 at wide open throttle, a spline count of 15 and a gear ratio of 1. <br /><br /> 2600 Apr 4, 2012 · I have been looking for a small 9. This is full Prop RPM Guide Engine RPM Chart for Proper Boat Propeller Sizing Note: WOT (wide open throttle) measurements are made with a tuned engine, a clean boat hull, loaded with an average boat load, and the propeller clean and undamaged. I think typical range would be 4500 to 5500. 1 5/16" carbs 2 1/2" setback, 4" below pad, no lwp, turning a 27 srx, low70s, full gear onboard and full tanks. This is my father in law's boat and I recently had the same problem with my 1998 mercury 150 hp and it was a bad stator. I believe it develops it power at 5000 rpm. no jack plate 5” prop to pad height I have the OMC manual for my motor. 2 mph @ 5400 RPM with 26 Raker II on a 1998 Javelin 389 DC. It is a very strong 115HP. 75 VF 225 V Max SHO 4-Stroke 5000-6000 1. Book says max rpm is 4500 We would like to show you a description here but the site won’t allow us. It lists the recommended wide-open throttle RPM ranges and gear ratios for engines from the 1970s through recent years. So I came back and raised it another 1/4 of a inch, got back on water and really put it to the test and got to 5000 rpm's and speed had increased to 55 mph. Watch the water pressure. At WOT with 1/2 to 1/4 tank of gas (28gal tank) and about 600 lbs of two pasengers and gear I am getting 4500 to 4600 rpm. 5 slidemaster manual jack plate Mod# J175PLSSC ser# G 04815788 Apr 12, 2019 · Throttle and Shift Cable Adjustment – by Joe Reeves Adjusting Throttle Cable – Joe Reeves If running the engine in a flushette, be sure to have the water turned on full blast. Is your 60 by gps?You may want to be sure the motor is Feb 25, 2016 · Your operating range is 4500-5500 RPM max HP is rated at 5000 RPM anything over 5500 you are just wasting fuel. trying to finish getting it dialed in without over revthanks Jan 22, 2007 · CAN ANYONE TELL ME THE MAX. sounds like you could use a bit less pitch, raise the motor, try a different style prop, or all of the above. The max speed for the engine is 56 MPH. At 71 mph 24" prop and a more normal slip of 8% you would be turning about 6300 rpm. Just trying to find out what i should expect as far cruise mpg out of this motor?? thanks The way to find out is set the engine up properly. The boat is litterally in perfect condition. Last week like a switch was flipped: WOT dropped from 5250 to 4700, sounds fine just wont increase, just feels like it's at 3/4 throttle setting but it's actually May 12, 2008 · Re: Boat won't go over 4,000 RPM's Check your prop. <br /><br />c/6<br />Hooty Jun 3, 2007 · Re: 1999 Johnson 150 HP Ocean Pro questions He Rod, I too just bought a 1999 21' Seaswirl with a Johnson 130 Hp. I dont like to turn the (stock) cast pistons over 6700. Mar 22, 2009 · The motor started and ran fine, trolling well idles well, top speed down to about 4800 rpm all good, take it down to about 4200-4500 rpms and it hits a dead spot. So, back to the question what rpm's did it used to run years ago, and what rpm's is it running now with that same prop. Just wanting to see if I need to go down in pitch on my prop to get some extra R's. lifted hood, unplugged The ideal RPM range can often depend on various factors, such as the type of boat, the weight of the load on the boat, and the motor’s horsepower. 5X20 Raker. 5 miles per hour on a gps,turning just over 5200 RPM with 13. I run just over 50 and 5400RPM with only one on board and a light fuel load. 200rpm. Jun 25, 2024 · The propeller is the one variable which you can easily alter to regulate your boat engine’s wide-open-throttle RPM range, simply by increasing (to lower wide-open RPM) or decreasing (to raise it) pitch. 5 x 17 prop, I thought that was correct. 75 Mar 12, 2008 · Can someone tell me what is the maximum operating RPM on a 1994 Johnson Faststrike 150 hp? any prop recomendation for this motor on a 18' bass boat? Currently running 4 blade 23" stainless steel. The full throttle RPM chart shows WOT RPM for: Evinrude / Johnson, OMC, Honda, Nissan / Tohatsu, Volvo, Yamaha, Suzuki, Mercury / Mariner, & Mercruiser. Transferred the high speed jets. The charts list the recommended wide-open throttle RPM ranges for different horsepower models at varying gear ratios to help operators run their engines efficiently. I'd prop it for 57-5800. It is the prop that came with the boat when I purchased a few years ago. 5k + fine when not under a load. I have a 350v with the GT 150. Apr 24, 2012 · Hi just got my engine report on my new E-Tec and my max rpm is 5250. If you don't have a manual call the tech. Apr 1, 2014 · as s. . The document provides RPM charts for various outboard motor brands and models including Evinrude, Johnson, Mercury, and Optimax. Yamaha 150 SHO First up, the Yamaha 150 SHO. The hull weighs around 1015lbs. am I cruisin for a wallet brusin' Jul 19, 2006 · I have recently bought a 1998 Wellcraft 21 ' CC with a 150 Johnson Oceanrunner. txt) or read online for free. Sep 5, 2013 · I have a 1997 stratos 17ft center console with a 1988 johnson 150 vro it runs great just won't go over 4000 rpm it has 14 1/4 x 21 prop I checked compression 90psi on all 6 cylinders, jumps spark across 1/2 cap on tester fuel pump runs great pumping primer bulb at wide open does nothing 1980 Hydrostream Viking with an original stock 1981 150 johnson. I was wondering what the max recommended RPM is for this engine. Turned out to be a power pack. Sep 26, 2015 · What is the max rpm and min. Also any recommendations on what oil I should run in it? Thanks! May 23, 2023 · Your beloved boat won’t go over 3000 RPM under load all of the sudden? Issues like this can be really annoying – everything seemed fine yesterday, but now, you will have to dedicate precious time to troubleshooting your boat engine! Well, in this guide, we’ll help you with that. The motor was breathing easy, except when I was really whipping those two boys out wide and went full throttle for a few seconds just before the whip. One inch will change the engine speed approx. After having what we thought was a successful fix and test the other day, last night the same issue showed up again. ymrsvh uyikwpn qdw ubveqq wunv knxgql eac zymxz hwvwzdi vpojjl aiqo yzsj unmkya tguewff xcbnj