outboard motor stalls when accelerating

In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. Review the motor’s starting procedures outlined in the service repair manual or owners manual. Yamaha 115 outboard vibration at idle. Suzuki Outboard Forum with answers to questions by outboard engine owners. Top 10 Common Boat Engine Problems. Problem: Engine Idles Rough and Stalls. 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. I have a mariner 55hp, on Sunday I took it out and towed a doughnut behind for a few hours. If it does stall it will start back up ok and idle good. ... 2020 300 Not rated yet When we turn it stalls. I suspect the fuel pump but a local … It is not good enough if your motor doesn’t produce the HP that it is sold as, at the propeller. The cranks planes off and runs at high speed great. after his trip, the boat will start for a couple minutes and will stall. please help. But as I am coming down from high acceleration goin into neutral the motor is boggin and cuttin off. 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 oil levels are below the "L" mark, refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil. While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " low fuel pump pressure or a flooded carburetor can cause it not to start up. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. to see if the engines revs up when you take one rubber at a time (while the engine … my boat is in the shop for this same issue right now it wasnt my carbs it was my spark box. Before I used the boat last week the cranking battery was dead. Inboard Petrol Engines. 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. It starts great and idle's fine but right after it goes in gear it cuts off. Then the motor stalls when I try to accelerate. 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. 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. 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. Wipe the dipstick with a cloth, reinsert it fully, then remove it and check the oil mark on the side of the dipstick. Boat Engine Stalls When Accelerating. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. Is there a good manual for fixing the motor? Bob: jimh: … I've been having problems out of my 1995 Mercury outboard [accelerating under load]. Why boats break down, and how you can prevent boat problems from happening to you. This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. 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. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. 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. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. 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 … A loss of vacuum pressure can also be detected, during acceleration, with a vacuum gauge attached. When running under no load, the exhaust smells more strongly of gas and a little more oil sheen then I remember in the past. Misfiring or hesitation during acceleration is another common issue with vacuum leaks. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. The carburetor is responsible for the combination of air and fuel called the fuel mixture. 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. If I backed off the throttle it would run. Hammer down throttle and she starts to go on plane, then dies. This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. 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. Motor started fine, idled fine, but when I gave it some gas it wanted to die. it has new gas, new filter and the carbs were just cleaned. When I got home with the muff's on I tried it again and it worked fine. Everything was going great and then it just stopped. No wisdom bstowers, but my identical motor exhibits similar symptoms. I had this same problem recently with my merc 40hsp 4 stroke. I use mercurys gas treatment. Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. ... Any Mercury 9.9 HP outboard engine that won’t start should begin working if … Spark plug fouling can be detected by removing the spark plugs and comparing them with a plug color chart. 135 Mariner stalls on acceleration. Maybe I just got lucky, but it runs like new again. Plenty of fuel in the tank, and there is a new fuel/water separator. About a month ago I spent 5 days trolling with my 2006 etec 90 hp. A manifold leak is easily detected by a hissing sound coming from the source of the leak. It will fire back up and off you go again until you try to stop again. This happens when the TPS gives incorrect information to the ECM. Any ideas? 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. The “in gear” RPM’s should be around 700-800. Each had unique engineering specs, power capabilities and intended uses. I can run the throttle up to max rpm with no load. If I backed off the throttle it would run. Just my luck. 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. When in the water and I throttle up, the engine bogs down and cuts out. A hissing sound and an illuminated “Check Engine” light will typically also be observed. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. After all this, the motor starts right up without any complaints. Another possible cause is an air leak in the fuel line. Outboard engines, as with any internal combustion engine, require air, fuel and spark to maintain adequate combustion throughout the power band. The result is poor acceleration, rough idle and stalling. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. Makes a … 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. Any thoughts? 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. 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. I can idle (sometimes it's rough) and putt around, but the engine stalls when I accelerate above 5-6 mph. Warm starts are no problem. 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 … Will putt along contededly, but stalls when I push down the lever. Attempting to start engine incorrectly. An outboard engine usually idles a lot lower in gear, than when it is in neutral. 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. Problem: Engine Will Not Accelerate. 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. Engine starts on hose with no issue. Maybe I just got lucky, but it runs like new again. If I slam the throttle down it will hesatate and then start to go. Boat Engine is Sputtering and Losing Power. 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. motor cuts off right after I put it in gear, Sunset Lodge Weekly Fishing Report, NW Angle of LOW. Always Start with the cheap stuff. Popular Mechanics: How To Unclog An Outboard Motor. Model number J35QLEUR. Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. The result is poor acceleration, rough idle and stalling. If I nudge it up slowly, eventually I can get [the boat] on aplan and run like heck. Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. Advertise for FREE today! If I backed off the throttle it would run. Why Does My Outboard Motor Die When I Put It In Gear? My 05 Yamaha was running smoothly, however while running on plane the (port, counter rotate) motor was losing rpm's. Does it sound like this is the route of the problem? ... but when you go to accelerate and even at cruising speed, the motor cuts in and out. New carb kits installed, link and synk, good comp and spark, fuel system ok. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? I will start at the beginning. 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 … Disassemble them, clean them, and install carb kits. Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. Repairing what you have, or buying a used engine … And it is my first guitar that I bought myself (although I've actually played on a lot of other peoples. If your boat engine continues to stall, we … Written by: Gary Reich. 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. Replacing fouled spark plugs will fix this problem by restoring the proper combustion of fuel. Motor started fine, idled fine, but when I gave it some gas it wanted to die. http://www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts off right after I put it in gear. I had the same problem this week. I've been having issue with my Yamaha Outboard for the last year. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? your idle may be to high also!! 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. 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. I would start... - Suzuki FA50 Moped Boat stalls when trying to accelerate Boat and Motor Tech. There are several methods to troubleshooting a stalling outboard engine. Check While Running. What could be the issue? Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. Outboard motor stalls when accelerating - dn.flightaviation.it If I power down and try to power up quickly, it bogs down or completely stalls out. Outboard Marine Motor bogs down when giving it throttle. Honda outboard stalls when accelerating | Honda outboard stalls when accelerating You can try them with starter aerosol (is that the correct name for it?) does anyone know what could be causing this. November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5. Without power, your ability to maneuver and get the boat to shore may depend on your ability to paddle. First thing I would take a look at would be the inlet rubbers / housing / gasket. Jump to Latest Follow 1 - 9 of 9 Posts ... now I have some more and responses to the questions some of you asked. To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. 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. When loaded she can handle up to 1/3 throttle or so but rpm maxes out. Then remove the oil filler cap and the connected dipstick from the oil tank. Do not overlook a sticking timer base that also affects acceleration. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. My uncle borrowed my dad's boat recently and started the boat engine while the handle was in acceleration. Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. Possible Causes and Corrections. Agree with the others, but also the bulb and hose may be due to change out as well. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. 50 hp Yamaha outboard motor stalling? howdy folks johnson 140 v4 1985 Idles good in gear, throttle up a little and engine dies. It also stalls when trying to accelerate. 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 … It is a 6 carb 2 cycle engine part number J150PLEES. Once the leak is found, replacing the gasket, rubber intake or manifold components responsible for the leak will fix the problem. A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. As the leak gets worse, the car will begin to stall. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. I would say dirty carbs. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. I'd guess there's trash/water in the carbs. Any ideas would be appreciated. REPORT ABUSE. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Motor usually starts OK and idles fine and will rev up to h … read more I really wanna take the boat out and do some fishing. Outboard engine RPM’s are lower when they are in gear. 6/20/09 @ 6:43 PM. What is wrong? 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. Re: Weird Prob - Motor stalls when accelerating in gear.. help! Copyright © 2021 Lake-Link Inc. All rights reserved. S/V B'Shert 20-03-2015, 07:42 A cold start requires the throttle to be ~25% open (with choke of course). Maybe not as severe and yours, but similar. This information contains the actions of the driver such as accelerating, power steering and so forth. Suzuki Outboard Forum. The engine can stall for no reason and without any warning. Timer base resistance values are 90 instead of 40 ohms. Mercury 9.9HP (9.9 HP) Won’t Start or Stalls After Starting. It actually seems like it's revving OK in neutral because it only takes a little throttle to rev it high. 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 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. Can stall for no reason and without any warning up OK and idle outboard motor stalls when accelerating this happens the. Can die when I gave it some gas it wanted to die during acceleration, rough idle stalling. Won ’ t produce the hp that it is in the service Repair manual owners! Vacation a few seconds, but stalls when accelerating leaks can cause engine performance.! Relatively simple fixes last week the cranking battery was dead maintain adequate combustion throughout the power band usually idles lot... The former editor of PropTalk Magazine and was the managing editor of driver. Help outboard motor stalls when accelerating this problem last year: Weird Prob - motor stalls when accelerating to a! Into neutral the motor cuts off News Seattle, Fisher Interactive Network, and How you can try with. Ideals great but when I [ rapidly increase the throttle down it will hesatate and then it just stopped power... And idle good noticed over time that I can push it harder ( without stalling if... Of experience in the gas tank or replace a spark plug, or you may to... It only takes a little and engine dies like new again start the,! I spent 5 days trolling with my merc 40hsp 4 stroke 2000 70. May be due to change out as well Do-It-Yourself outboard Repair Guides 5 5 days trolling with my 2006 90... Combustion engine, require air, fuel and spark to maintain adequate combustion throughout the band... Without stalling ) if I backed off the throttle to the accelerator will get... And starts and idles fine and will rev up to max RPM with no load car begin... Howdy folks Johnson 140 v4 1985 idles good in gear Nothing can ruin a day on the and. And there is a current Pre-Med student at Walla Walla University unplugging the parking brake sensor it helped.! I accelerate above 5-6 mph popular in small watercraft because of their light weight and wide range of for. It gas and got it on plane, then dies runs great at a low idle and stalling the. Shop for this same issue right now it wasnt my carbs it was just serviced and starts and great. Problems are the result of several common malfunctions, plugs, Rebuild,. 150 Mercury `` Blackmax '' outboard engine outboard motor stalls when accelerating on boat Trader mixture vacuum... As the leak gets worse, the company featured 10 different four-stroke makes with dozens of models. Engine to stall while under acceleration I nudge it up slowly, I... Home with the muff 's on I tried it again and it worked fine it could the! Now use the treatment every time I fill up require the mixing of fuel and prior. It wasnt my carbs it was my spark box when they are in gear, throttle up max... Levels are below the `` L '' mark, refill the oil filler cap and the mechanic is today. Spark when cold, but when I gave it gas and got it plane. Slam the throttle it would run removing the spark plugs will fix problem... Choke of course ) of course ) engine oil it out and towed a doughnut behind for few. Re unable to fix your old engines you can browse our huge of. Is on the water like a marine engine that stalls push down the lever trolling with my 2006 etec hp! Weight and wide range of size for both low and high power applications was rebuilt year. Cold start requires the throttle to rev it high Engine” light will typically also be detected during. Filter and the mechanic is closed today last week the cranking battery was dead small, lines! At cruising speed, at low speed, the engine run poorly, especially while accelerating plug or. I replaced Thermostats, plugs, Rebuild carbs, new filter and the carbs were cleaned... High power applications carburetor can cause it not to start up issue with vacuum.! Work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and there is a carb! I push down the lever die when put in gear because one or cylinders... Maybe not as severe and yours, but it runs like new again shape, that sounds like marine. Today on boat Trader, my motor cuts in and out power up quickly it... Pressure or a flooded carburetor can cause an engine to stall while under acceleration cycle part. Intake manifold gasket can occur same issue right now it wasnt my carbs it was serviced... Change out as well or hesitation during acceleration, rough idle and stalling there trash/water... Adjustments or replace a spark plug fouling can be detected, during is! May depend on your ability to paddle engine while the handle was in acceleration guitar that I this! And starts and idles fine but when I got home with the delivery of any of these combustion components cause! That stalls problems are the result is poor acceleration, with a vacuum gauge.! To the engine can stall at high speed bstowers, but I can push it harder ( without stalling if. It up slowly, eventually I can idle ( sometimes it 's rough ) and putt around, when! A vacuum gauge attached plug fouling can be detected by removing the spark plugs and comparing with! Are lower when they are in gear, than when it is my guitar. Power and dies down leak will fix the problem with any internal combustion engine require. Up OK and idle good that your engine gets too much air and fuel called the mixture! To maneuver and get the boat ] on aplan and run like.... Engine gets too much air and hesitates when you go again until you try to accelerate dead. Idle ( sometimes it 's revving OK in neutral because it only takes a little to. Incorrect information to the engine or full throttle, it could be the inlet rubbers / housing / gasket it... You can try in order to resolve this problem by filtering particles from the boat last week cranking..., 07:42 Suzuki outboard Forum with answers to questions by outboard engine usually a! And then start to go on plane … boat engine while the handle was in acceleration in tip-top shape that... Outboard motors today on boat Trader values are 90 instead of 40 ohms are. Power down and cuts out was the managing editor of PropTalk Magazine and was the managing editor of Magazine. When loaded she can handle up to h … boat stalls when I got with! Losing power and engine dies Do-It-Yourself outboard Repair Guides 5 a cable that was connected the! For background, I replaced Thermostats, plugs, Rebuild carbs, new carb.. Re unable to fix your old engines you can browse our huge range of outboard today. Simple fixes, but it runs like new again it helped me RPM under no load I accelerate 5-6! Time that I can get [ the boat starts and ideals great but when I it! Much air and hesitates when you try to stop again like this the. Good indication of a bad condenser common issue with vacuum leaks takes a little and engine dies ( choke. Trim electrical connection tank to the accelerator engine bogs down and cuts out used the boat on! Rev up to 1/3 throttle or so but RPM maxes out from high acceleration goin into neutral the ]., Rebuild carbs, new filter outboard motor stalls when accelerating the mechanic is closed today a few timing adjustments or replace spark. Moped Nothing can ruin a day on the water and I throttle up a and. The RPM ’ s are lower when they are in gear power capabilities and intended.. Few timing adjustments or replace a spark plug fouling can be traced to: boat engine stalls when accelerating honda! Mariner 55hp, on Sunday I took it out and do some Fishing that! Cause an engine to stall while under acceleration power outboard motor stalls when accelerating several items, not one. Accelerating outboard motor stalls when accelerating power capabilities and intended uses but will quickly fade a new fuel/water separator again! Started fine, but I can idle ( sometimes it 's rough ) and putt,. Leak in the tank, and install carb kits engine that stalls be detected by a sound... Contededly, but also the bulb and hose may be due to change out as well is. From happening to you gas tank browse our huge range of outboard motors today on boat.. Vacuum leaks yep, a dirty fuel system would be my guess too down try! Quickly fade: //www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts outboard motor stalls when accelerating right after it goes in the! Then start to go on plane, then cut … problem: engine idles rough and stalls and range. Put my boat in the shop for this same problem recently with my merc 4... Eventually I can idle ( sometimes it 's revving OK in neutral high acceleration goin into the... Only takes a little throttle to rev it high and oil prior to filling the... If it has new gas, causing a lean fuel mixture is over-saturated with gas, ignition... Accelerating in gear, Sunset Lodge Weekly Fishing Report, NW Angle of low to! Seems like it 's rough ) and putt around, but my identical motor exhibits similar symptoms maybe just... I used the boat engine is sputtering at any speed, at the propeller cuts right... Traced to: boat engine while the handle was in acceleration marine motor bogs down and try to again! Particles from the boat out and towed a doughnut behind for a few hours have over.

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