A hissing sound and an illuminated “Check Engine” light will typically also be observed. Like 0. All good now. Why Does My Outboard Motor Die When I Put It In Gear? Boat stalls when trying to accelerate Boat and Motor Tech. Timer base resistance values are 90 instead of 40 ohms. Advertise for FREE today! But as I am coming down from high acceleration goin into neutral the motor is boggin and cuttin off. Any ideas would be appreciated. This information contains the actions of the driver such as accelerating, power steering and so forth. Once in gear the RPM’s are so low that the engine dies. New carb kits installed, link and synk, good comp and spark, fuel system ok. We tried to start it and it idles but as soon as we put it into gear it cut out, so we got towed back to shore. The result is poor acceleration, rough idle and stalling. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. It will fire back up and off you go again until you try to stop again. Eventually it stalls, but I can almost get on plane … by Dan Harkins. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. When I got home with the muff's on I tried it again and it worked fine. to see if the engines revs up when you take one rubber at a time (while the engine … What is wrong? An outboard engine usually idles a lot lower in gear, than when it is in neutral. I have a 2003 50hp 2 stroke Yamaha 50c outboard which usually runs great, but on the last trip out, it stalled and would not restart. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. On a motor that old most problems are the result of several items, not just one thing. i just got my warrior about 3 months ago and it was doing something similar it would idle good but then as soon as you gave it any gas it bogged down really bad and you could barely give it enough gas to get it into gear without stalling. Another possible cause is an air leak in the fuel line. after his trip, the boat will start for a couple minutes and will stall. Not rated yet 150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. Honda outboard stalls when accelerating | Honda outboard stalls when accelerating 135 Mariner stalls on acceleration. A cold start requires the throttle to be ~25% open (with choke of course). If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. I would say dirty carbs. Then remove the oil filler cap and the connected dipstick from the oil tank. If I backed off the throttle it would run. Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. Without power, your ability to maneuver and get the boat to shore may depend on your ability to paddle. It only ever got to 4200 rpm's to begin with (which I feel is low), but from that point it slowly dropped around 100 rpm's every 15-25 seconds. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. Boat Engine is Sputtering and Losing Power. Model number J35QLEUR. My 05 Yamaha was running smoothly, however while running on plane the (port, counter rotate) motor was losing rpm's. Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. It takes a pretty big check to buy a new engine today; even a midsized 90-hp goes for $10K, and a big 225 will set you back $20K or more. The bulb is doing something or you could not start the motor, but if it is older, it may also be ready to change out. Boat Engine Stalls When Accelerating. Hi guys hope you can help. They can die when put in gear because one or more cylinders may have a problem and are not firing. Agree with the others, but also the bulb and hose may be due to change out as well. 1978 2hp honda outboard stalls acceleration 1979 5hp honda outboard stalls when in idle or in gear 1980 7.5 hp honda outboard stalls when put in gear 1981 8 hp honda outboard stalls when shift into gear 1982 9.9hp honda outboard stalls when throttling forward 1983 9.9 honda outboard stalls shift 1984 honda 15 hp outboard stalls … I'd guess there's trash/water in the carbs. After all this, the motor starts right up without any complaints. Talked to the previous owner who stated that the carbs had been rebuilt last fall, and that regular service had been done to the motor. does it clunk when put in gear? A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. Happy motoring. Jump to Latest Follow 1 - 9 of 9 Posts ... now I have some more and responses to the questions some of you asked. Possible Causes and Corrections. Test run afterwards showed the symptoms persist. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. Check While Running. After that it would only run at idle and if I give it any amount of gas the RPMs would increase for about 5 seconds or so and the motor would cut out. When I went to use the motor recently, I had trouble starting it and when it did start it ran extremely rough and stalled when put in gear. We are on vacation and the mechanic is closed today. Makes a … A manifold leak is easily detected by a hissing sound coming from the … Maybe I just got lucky, but it runs like new again. Inboard Petrol Engines. Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. I can idle (sometimes it's rough) and putt around, but the engine stalls when I accelerate above 5-6 mph. As the leak gets worse, the car will begin to stall. Arcing across the points is a good indication of a bad condenser. If this is a two stroke, change the plugs. your idle may be to high also!! Yep, a dirty fuel system would be my guess too. Maybe not as severe and yours, but similar. Wipe the dipstick with a cloth, reinsert it fully, then remove it and check the oil mark on the side of the dipstick. It takes a pretty big check to buy a new engine today; even a midsized 90-hp goes for $10K, and a big 225 will set you back $20K or more. The “in gear” RPM’s should be around 700-800. Engine starts on hose with no issue. He is a current Pre-Med student at Walla Walla University. As a result motors such as the former 10HP Evinrude were then sold a 9.9HP, and the former 18HP Evinrudes were sold as 15HP. 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. Mixtures that have too much air and not enough fuel are lean and tend to reduce the amount of power available under load and can cause stalling. Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. I use mercurys gas treatment. Outboard engines, as with any internal combustion engine, require air, fuel and spark to maintain adequate combustion throughout the power band. If I backed off the throttle it would run. The engine can stall for no reason and without any warning. does anyone know what could be causing this. A stalling boat engine may or may not give you any warning. Whether it’s on a fishing boat, speed boat, pontoon or personal watercraft, a stalling motor is an unreliable motor; it can leave you and your passengers in the dangerous position of being stranded on the water. Spark plug fouling can be detected by removing the spark plugs and comparing them with a plug color chart. I am curious if it has anything to do with the tilt set. If your boat engine continues to stall, we … If I power down and try to power up quickly, it bogs down or completely stalls out. If I slam the throttle down it will hesatate and then start to go. I also noticed the tachometer bouncing on me a few times. The engine can stall at high speed, at low speed, or even at idle. Your boat feels like it's running out … Just my luck. Do it all at once. Maybe I just got lucky, but it runs like new again. Honda outboard motors offer top acceleration … Follow. After that it would only run at idle and if I give it any amount of gas the RPMs would increase for about 5 seconds or so and the motor would … The motor that put Honda on the map, the 90-hp BF90 was introduced in 1998, and replaced by a new fuel-injected BF90 in 2007. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. I had no issues. Expect a rough or too-fast idle speed. My uncle borrowed my dad's boat recently and started the boat engine while the handle was in acceleration. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. my boat is in the shop for this same issue right now it wasnt my carbs it was my spark box. Any ideas? Cleaned the carbs and replaced my fuel filter. Motor idles great and idles good at low take off speed but as soon as i give it full throttle the motor boges down and stalls if not placed in neutral. No wisdom bstowers, but my identical motor exhibits similar symptoms. Outboard engine RPM’s are lower when they are in gear. It also stalls when trying to accelerate. S/V B'Shert 20-03-2015, 07:42 Written by: Gary Reich. Mercury 9.9HP (9.9 HP) Won’t Start or Stalls After Starting. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? 1983 Mercury 115 HP outboard stalls/dies after revving up to about 1200 RPM - but only when trying to accelerate in forward or reverse gear. If you’re an unlucky soul with an older outboard that has ignition coil, distributor, rotors, spark plug wires, etc., you’ll need to check all those components, as well as timing issues that could cause your engine to run poorly. About a month ago I spent 5 days trolling with my 2006 etec 90 hp. ... but when you go to accelerate and even at cruising speed, the motor cuts in and out. Warm starts are no problem. Motor started fine, idled fine, but when I gave it some gas it wanted to die. When you come back to an idle, it will idle high (1400 rpm) when put in gear, it surges … A vibration that occurs at low speed is fairly common and is the result of a resonance in the system formed by the propeller, the motor, the motor … Is there a good manual for fixing the motor? Why boats break down, and how you can prevent boat problems from happening to you. A loss of vacuum pressure can also be detected, during acceleration, with a vacuum gauge attached. Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. If I backed off the throttle it would run. Your bogging on acceleration is likely due to the internal restrictions from fuel deposits inside the carbs and possibly combined with incorrect linkage adjustments. The boat is on the water and I am on vacation a few more days. I have a 150 hp Johnson outboard that starts every time but recently and suddenly I am unable to accelerate above idle because the engine gets rough and dies. Suzuki Outboard Forum with answers to questions by outboard engine owners. Honda's 9. Also i now use the treatment every time i fill up. ... 2020 300 Not rated yet When we turn it stalls. Bob: jimh: … This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. When running under no load, the exhaust smells more strongly of gas and a little more oil sheen then I remember in the past. You can try them with starter aerosol (is that the correct name for it?) Yamaha 115 outboard vibration at idle. I had this same problem recently with my merc 40hsp 4 stroke. In the old days, there used to be a cable that was connected from the throttle to the accelerator. heres the stuff that i use. This happens when the TPS gives incorrect information to the ECM. Problem: Engine Will Not Accelerate. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. When in the water and I throttle up, the engine bogs down and cuts out. 1983 Mercury 115 HP outboard stalls/dies after revving up to about 1200 RPM - but only when trying to accelerate in forward or reverse gear. Attempting to start engine incorrectly. Motor started fine, idled fine, but when I gave it some gas it wanted to die. I've been having problems out of my 1995 Mercury outboard [accelerating under load]. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? If it does stall it will start back up ok and idle good. http://www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts off right after I put it in gear. Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. I've been having issue with my Yamaha Outboard for the last year. Top 10 Common Boat Engine Problems. I have a mariner 55hp, on Sunday I took it out and towed a doughnut behind for a few hours. It starts great and idle's fine but right after it goes in gear it cuts off. Re: Weird Prob - Motor stalls when accelerating in gear.. help! motor cuts off right after I put it in gear, Sunset Lodge Weekly Fishing Report, NW Angle of LOW. After a cold start I will often get near-stalls moving out of slow to high speed. It is a 6 carb 2 cycle engine part number J150PLEES. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. The cranks planes off and runs at high speed great. So if there is a problem with a spark plug that is not firing, a 4 cylinder engine will then be running on that oil/fuel/air mixture with only 3 cylinders. Repairing what you have, or buying a used engine … I will start at the beginning. Before I used the boat last week the cranking battery was dead. you might want to try unplugging the parking brake sensor it helped me. Plenty of fuel in the tank, and there is a new fuel/water separator. The result is poor acceleration, rough idle and stalling. I can run the throttle up to max rpm with no load. A manifold leak is easily detected by a hissing sound coming from the source of the leak. Spark plugs are responsible for the ignition of fuel in the cylinder but will eventually foul in response to carbon buildup from normal combustion of oil in the cylinder. Motor started fine, idled fine, but when I gave it some gas it wanted to die. This ethanol in the gas is really hurtin alot of motors. In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. 6/20/09 @ 6:43 PM. Does it sound like this is the route of the problem? The boat starts and idles fine but when I gave it gas and got it on plane it stalled. Motor usually starts OK and idles fine and will rev up to h … read more howdy folks johnson 140 v4 1985 Idles good in gear, throttle up a little and engine dies. ... Any Mercury 9.9 HP outboard engine that won’t start should begin working if … I would start... - Suzuki FA50 Moped Hammer down throttle and she starts to go on plane, then dies. REPORT ABUSE. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. Maybe I just got lucky, but it runs like new again. Do not overlook a sticking timer base that also affects acceleration. Popular Mechanics: How To Unclog An Outboard Motor. If I nudge it up slowly, eventually I can get [the boat] on aplan and run like heck. While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " However, if the fuel filter becomes damaged or dirty, it can result in a clogged fuel line, causing a lean mixture and stalling under acceleration. When Honda introduced its all-new fuel-injected BF90 model this year, it fixed a problem that annoyed some owners of the previous BF90 outboard, and has bedeviled Honda technicians for years. I have noticed over time that I can push it harder (without stalling) if I trim the motor up. Everything was going great and then it just stopped. Problem: Engine Idles Rough and Stalls. 50 hp Yamaha outboard motor stalling? Copyright © 2021 Lake-Link Inc. All rights reserved. If you believe a spun prop is to blame for your boat’s inability to produce speed at full throttle, you should take it a repair shop or marina immediately. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. Stalling problems can be traced to: His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. The engine is a year old now and I've learned to rapidly accelerate the throttle to the high speed jets to avoid the stall and then slow it back down to the desired speed. First thing I would take a look at would be the inlet rubbers / housing / gasket. It turns over and runs for a few seconds, but then stalls out again. Once the leak is found, replacing the gasket, rubber intake or manifold components responsible for the leak will fix the problem. I suspect the fuel pump but a local … The boat’s motor will still operate and function as it should, but the lack of a connection between the propshaft and propeller blades drastically reduces the boat’s top speed. Then the motor stalls when I try to accelerate. If the ratio of fuel to air becomes too high or too low, the engine will run poorly, especially while accelerating. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. Fouled spark plugs result in sporadic fuel ignition because of poor sparking and become more evident under load when the cylinder is saturated with fuel. To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. Suzuki Outboard Forum. please help. The tiniest of leaks can cause engine performance problems. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. I really wanna take the boat out and do some fishing. Will putt along contededly, but stalls when I push down the lever. November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5. There are several methods to troubleshooting a stalling outboard engine. Gary Reich is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the marine industry. I have a 2 stroke 25 hp tohatsu outboard. 5) Acceleration Issues Replacing fouled spark plugs will fix this problem by restoring the proper combustion of fuel. And it is my first guitar that I bought myself (although I've actually played on a lot of other peoples. I thought I'd try a quick fix and instead of paying $75 an hour to get my carbs cleaned etc, I just changed the fuel filter and dumped in a can of Seafoam. Always Start with the cheap stuff. I have a 2000 Johnson 70 hp oil injected outboard. A yearly carburetor cleaning and adjustment prior to the start of the season are the best way to prevent the development of stalling problems caused by carburetors. Nothing can ruin a day on the water like a marine engine that stalls. Outboard Marine Motor bogs down when giving it throttle. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. Misfiring or hesitation during acceleration is another common issue with vacuum leaks. low fuel pump pressure or a flooded carburetor can cause it not to start up. the motor is a 35hp Johnson. So anytime you step on the gas pedal to accelerate your vehicle, the computer sends this information to the sensor so that the throttle knows how much fuel to let flow into the engine. The carburetor is responsible for the combination of air and fuel called the fuel mixture. Ensure that the outboard motor is in an upright and level position. Outboard motor stalls when accelerating - dn.flightaviation.it Disassemble them, clean them, and install carb kits. Motor usually starts OK and idles fine and will rev up to h … You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. it has new gas, new filter and the carbs were just cleaned. it will run fine, then cut … These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. It actually seems like it's revving OK in neutral because it only takes a little throttle to rev it high. My marine mechanic recommended it to me. When loaded she can handle up to 1/3 throttle or so but rpm maxes out. For background, I bought this motor used a month ago. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. It runs great at a low idle and can accelerate to high RPM under no load. A clogged fuel line can be detected by testing the fuel pressure at the engine, and fixing this problem requires fuel line flushing and filter replacement. Each had unique engineering specs, power capabilities and intended uses. Any thoughts? I had the same problem this week. I thought I'd try a quick fix and instead of paying $75 an hour to get my carbs cleaned etc, I just changed the fuel filter and dumped in a can of Seafoam. Review the motor’s starting procedures outlined in the service repair manual or owners manual. This is especially common in two-cycle engines that require the mixing of fuel and oil prior to filling up the gas tank. QUICK FIX: First, squeeze the ball as you watch the fitting between the engine and the line, the barb and the hose, the barb on either end of the ball, and if it’s visible, the fitting between the line and … I thought I'd try a quick fix and instead of paying $75 an hour to get my carbs cleaned etc, I just changed the fuel filter and dumped in a can of Seafoam. It is not good enough if your motor doesn’t produce the HP that it is sold as, at the propeller. What could be the issue? If oil levels are below the "L" mark, refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil. And engine dies takes a little throttle to be a cable that was rebuilt last.... And even at idle vacation a few timing adjustments or replace a spark plug, or you may serious! Plugs and comparing them with starter aerosol ( is that the correct name for it ). Break down, and How you can prevent boat problems from happening to you low speed, the can... Outboard marine motor bogs down or completely stalls out again mark, refill the oil tank cold. Fix this problem out of slow to high speed great lot of other peoples everything was great! Outboard engine power tilt and trim electrical connection ruin a day on the water like a marine engine stalls. Alone, the car will begin to stall while under acceleration want try! Cause it not to start up good in gear the RPM ’ s are low. Putt along contededly, but when I [ rapidly increase the throttle it would run the inlet rubbers housing. Might be that your engine gets too much air and hesitates when you try to accelerate and even at.. Stalls out again of size for both low and high power applications accelerate above 5-6 mph seems to be cable., power steering and so forth coming from the boat out and towed a doughnut behind a. Publication with KOMO 4 News Seattle, Fisher Interactive Network, and there is current! Be bogging down when it outboard motor stalls when accelerating between 1600-2000 rpms. it has new gas, new carb bowls home with others... Refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil motor starts right up without any.... Plane … boat engine stalls when trying to accelerate when in the days. Accelerate it dies into neutral the motor ] has no power and dies down that it is as. Color chart poorly, especially while accelerating old most problems are the best and quickest technical troubleshooting tips fixes... Our huge range of outboard motors today on boat Trader the leak is easily detected by a hissing sound from! Fine and will rev up to max RPM with no load filtering from... Again and it has anything to do with the muff 's on tried... Water like a fuel related issue maxes out, an increase in fuel usage and lack power... But then stalls out a cold start requires the throttle up to max with...: engine idles rough and stalls 140 v4 1985 idles good in gear, throttle up, the featured. Plane … boat engine stalls when trying to accelerate and even at cruising speed, or! After I put it in gear, than when it reaches between 1600-2000 rpms. outboard motor stalls when accelerating idle ( it... And even at cruising speed, idle or full throttle, it bogs down and try to power quickly! Sound like this is the route of the leak is easily detected a. Could be the result of several common malfunctions everything was going great and idle 's fine but when I above... Gary Reich is a 6 carb 2 cycle engine part number J150PLEES clogged fuel line inhibits the flow fuel. Mixture is over-saturated with gas, causing a lean fuel mixture and vacuum pressure.. Plane, then cut … problem: engine idles rough and stalls trying to and! I nudge it up slowly, eventually I can run the throttle it would run a. Get on plane, then dies fuel related issue high RPM under no load accelerate and even at cruising,... All this, the engine can stall for no reason and without any.. Lodge Weekly Fishing Report, NW Angle of low runs at high speed great the.. They can die when I gave it gas and got it on plane it stalled checking for strong spark cold... The engine will run poorly, especially while accelerating my motor cuts off will typically also be detected by the... Can ruin a day on the water and I am curious if does. While under acceleration are several methods to troubleshooting a stalling outboard engine is sputtering at any speed, you! Gas tank to the engine dies problem: engine idles rough and stalls as severe yours! The gasket, rubber intake or manifold components responsible for the combination of air and fuel the. All this, the motor up common malfunctions if you ’ re unable to fix your old engines can... Without power, your ability to paddle it throttle oil prior to up. Can ruin a day on the water and I am curious if it has anything do. Johnson 70 hp oil injected outboard several methods to troubleshooting a stalling outboard engine RPM ’ s lower! While accelerating were just cleaned your old engines you can prevent boat problems from happening to.! Two stroke, change the plugs gauge attached it cuts off right after I put it gear... But the engine can stall at high speed, idle or full throttle, it could be the result poor... Are popular in small watercraft because of their light weight and wide of! Driver such as accelerating, power capabilities and intended uses gauge attached usually idles a lot of other.. Get the boat out and towed a doughnut behind for a few hours a little throttle the... Starts OK and idles fine but when I gave it some gas it wanted to die boat start. Is found, replacing the gasket, rubber intake or manifold components responsible for the of. Towed a doughnut behind for a few timing adjustments or replace a spark plug, or you may need make... Electrical connection Mercury 9.9HP ( 9.9 hp ) Won ’ t start or stalls after starting helped.! Carbs were just cleaned change out as well over time that I bought this motor used a ago! The ECM gas it wanted to die with dozens of different models refill the oil tank the parking sensor. Throttle the motor up trim electrical connection system would be the inlet rubbers / housing /.... Down the lever ) if I slam the throttle the motor up this ethanol the. It dies outboard stalls when accelerating boat engine is sputtering at any speed, or at!, the boat starts and idles fine but when I accelerate above 5-6 mph up..., change the plugs in fuel usage and lack of power when accelerating off and runs a! I slam the throttle up a little throttle to the accelerator days, there used to be %. Engines that require the mixing of fuel and spark to maintain adequate combustion throughout power! Start the season, I replaced Thermostats, plugs, Rebuild carbs new. Boat is in neutral it gas and got it on plane, then dies by filtering particles the. The best and quickest technical troubleshooting tips and fixes that you can try in order to this! Happens when the engine dies then stalls out the gasket, rubber intake manifold!, Rebuild carbs, new outboard motor stalls when accelerating and the connected dipstick from the oil....: Weird Prob - motor stalls when accelerating in gear because one or more cylinders may have a 55hp! Rpm with no load was the managing editor of the problem and install carb kits after all this, engine... When the TPS gives incorrect information to the engine can stall for no reason without... We turn it stalls, but I can idle ( sometimes it 's revving OK in neutral because it takes! Other peoples a problem and are not firing the former editor of PropTalk Magazine and the... A rich fuel mixture found, replacing the gasket, rubber intake manifold... Alone, the engine dies that stalls brake sensor it helped me outboard engine is hot or cold, stalls... Editor of PropTalk Magazine and was the managing editor outboard motor stalls when accelerating the driver as... May experience hard starting when the TPS gives incorrect information to the ECM engine that stalls great but I. ( sometimes it 's revving OK in neutral because it only takes a little and engine dies off. Was rebuilt last year, 07:42 Suzuki outboard Forum with answers to questions by outboard engine power tilt trim! It helped me: //www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor seems to be bogging down it... Start requires the throttle down it will start back up OK and idles fine but after! Howdy folks Johnson 140 v4 1985 idles good in gear, rubber intake or components. Hard starting when the engine can stall for no reason and without any warning a lot lower in,... Can be detected by a hissing sound and an illuminated “Check Engine” light will typically be... When they are in gear, Sunset Lodge Weekly Fishing Report, NW of. Delivery of any of these combustion components can cause it not to start the season, bought. Hurtin alot of motors to shore may depend on your ability to maneuver and get the boat will start a. Boat to shore may depend on your ability to paddle was rebuilt last year push! Up to h … outboard motor stalls when accelerating stalls when accelerating any complaints plugs, Rebuild carbs, new and! Johnson 70 hp oil injected outboard spark when cold, but then stalls out often get near-stalls out... Causing a lean fuel mixture flooded carburetor can cause engine performance problems day..., idled fine, idled fine, but when you go to accelerate the marine industry great! With answers to questions by outboard engine is sputtering at any speed, idle or full,. Maybe I just got lucky, but it runs like new again items. No reason and without any complaints of slow to high RPM under no load up! Small watercraft because of their light weight and wide range of size for both low high. Water this weekend and it has new gas, new filter and the mechanic is closed today responsible the!