50 hp Yamaha outboard motor stalling? Without power, your ability to maneuver and get the boat to shore may depend on your ability to paddle. I really wanna take the boat out and do some fishing. Suzuki Outboard Forum with answers to questions by outboard engine owners. Stalling problems can be traced to: A hissing sound and an illuminated “Check Engine” light will typically also be observed. 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 … The engine can stall at high speed, at low speed, or even at idle. Maybe I just got lucky, but it runs like new again. does it clunk when put in gear? I suspect the fuel pump but a local … Honda's 9. The engine can stall for no reason and without any warning. This is especially common in two-cycle engines that require the mixing of fuel and oil prior to filling up the gas tank. 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. Is there a good manual for fixing the motor? On a motor that old most problems are the result of several items, not just one thing. Jump to Latest Follow 1 - 9 of 9 Posts ... now I have some more and responses to the questions some of you asked. When in the water and I throttle up, the engine bogs down and cuts out. Eventually it stalls, but I can almost get on plane … These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. Any ideas would be appreciated. Attempting to start engine incorrectly. 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 result is poor acceleration, rough idle and stalling. I am curious if it has anything to do with the tilt set. The tiniest of leaks can cause engine performance problems. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Yep, a dirty fuel system would be my guess too. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. Motor started fine, idled fine, but when I gave it some gas it wanted to die. does anyone know what could be causing this. I can idle (sometimes it's rough) and putt around, but the engine stalls when I accelerate above 5-6 mph. 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. Possible Causes and Corrections. A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. 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. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Advertise for FREE today! Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. Popular Mechanics: How To Unclog An Outboard Motor. You can try them with starter aerosol (is that the correct name for it?) Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. If the ratio of fuel to air becomes too high or too low, the engine will run poorly, especially while accelerating. I have a mariner 55hp, on Sunday I took it out and towed a doughnut behind for a few hours. http://www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts off right after I put it in gear. heres the stuff that i use. Also i now use the treatment every time i fill up. And it is my first guitar that I bought myself (although I've actually played on a lot of other peoples. If I slam the throttle down it will hesatate and then start to go. Motor usually starts OK and idles fine and will rev up to h … read more your idle may be to high also!! It also stalls when trying to accelerate. First thing I would take a look at would be the inlet rubbers / housing / gasket. low fuel pump pressure or a flooded carburetor can cause it not to start up. The “in gear” RPM’s should be around 700-800. Motor started fine, idled fine, but when I gave it some gas it wanted to die. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. Timer base resistance values are 90 instead of 40 ohms. I have noticed over time that I can push it harder (without stalling) if I trim the motor up. Boat stalls when trying to accelerate Boat and Motor Tech. 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. 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. Test run afterwards showed the symptoms persist. Hi guys hope you can help. Boat Engine Stalls When Accelerating. I can run the throttle up to max rpm with no load. After all this, the motor starts right up without any complaints. Does it sound like this is the route of the problem? Agree with the others, but also the bulb and hose may be due to change out as well. A manifold leak is easily detected by a hissing sound coming from the source of the leak. 6/20/09 @ 6:43 PM. Inboard Petrol Engines. my boat is in the shop for this same issue right now it wasnt my carbs it was my spark box. 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. 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 … Disassemble them, clean them, and install carb kits. I would start... - Suzuki FA50 Moped After a cold start I will often get near-stalls moving out of slow to high speed. Once the leak is found, replacing the gasket, rubber intake or manifold components responsible for the leak will fix the problem. Model number J35QLEUR. Mercury 9.9HP (9.9 HP) Won’t Start or Stalls After Starting. I had the same problem this week. Nothing can ruin a day on the water like a marine engine that stalls. please help. 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. 5) Acceleration Issues What is wrong? Written by: Gary Reich. Makes a … I will start at the beginning. About a month ago I spent 5 days trolling with my 2006 etec 90 hp. ... Any Mercury 9.9 HP outboard engine that won’t start should begin working if … My uncle borrowed my dad's boat recently and started the boat engine while the handle was in acceleration. 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 … Before I used the boat last week the cranking battery was dead. It is not good enough if your motor doesn’t produce the HP that it is sold as, at the propeller. A loss of vacuum pressure can also be detected, during acceleration, with a vacuum gauge attached. Do it all at once. It turns over and runs for a few seconds, but then stalls out again. Not rated yet 150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. I've been having issue with my Yamaha Outboard for the last year. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. Happy motoring. 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. REPORT ABUSE. While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " If I backed off the throttle it would run. Do not overlook a sticking timer base that also affects acceleration. Ensure that the outboard motor is in an upright and level position. Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. It will fire back up and off you go again until you try to stop again. Gary Reich is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the marine industry. Bob: jimh: … Review the motor’s starting procedures outlined in the service repair manual or owners manual. I have a 2000 Johnson 70 hp oil injected outboard. 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. This ethanol in the gas is really hurtin alot of motors. It is a 6 carb 2 cycle engine part number J150PLEES. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? 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. But as I am coming down from high acceleration goin into neutral the motor is boggin and cuttin off. The carburetor is responsible for the combination of air and fuel called the fuel mixture. If I backed off the throttle it would run. November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5. I also noticed the tachometer bouncing on me a few times. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. Spark plug fouling can be detected by removing the spark plugs and comparing them with a plug color chart. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. A cold start requires the throttle to be ~25% open (with choke of course). Then the motor stalls when I try to accelerate. All good now. In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. Honda outboard motors offer top acceleration … In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. Your bogging on acceleration is likely due to the internal restrictions from fuel deposits inside the carbs and possibly combined with incorrect linkage adjustments. Plenty of fuel in the tank, and there is a new fuel/water separator. For background, I bought this motor used a month ago. An outboard engine usually idles a lot lower in gear, than when it is in neutral. Any thoughts? Maybe not as severe and yours, but similar. 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. Everything was going great and then it just stopped. 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. His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. If it does stall it will start back up ok and idle good. If I backed off the throttle it would run. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? Honda outboard stalls when accelerating | Honda outboard stalls when accelerating 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. you might want to try unplugging the parking brake sensor it helped me. Another possible cause is an air leak in the fuel line. Re: Weird Prob - Motor stalls when accelerating in gear.. help! 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. Your boat feels like it's running out … If I nudge it up slowly, eventually I can get [the boat] on aplan and run like heck. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. Suzuki Outboard Forum. He is a current Pre-Med student at Walla Walla University. A stalling boat engine may or may not give you any warning. Why boats break down, and how you can prevent boat problems from happening to you. 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. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. Problem: Engine Idles Rough and Stalls. Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. The result is poor acceleration, rough idle and stalling. We are on vacation and the mechanic is closed today. Motor started fine, idled fine, but when I gave it some gas it wanted to die. the motor is a 35hp Johnson. Outboard Marine Motor bogs down when giving it throttle. There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. 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 … Outboard motor stalls when accelerating - dn.flightaviation.it Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. Copyright © 2021 Lake-Link Inc. All rights reserved. Yamaha 115 outboard vibration at idle. It runs great at a low idle and can accelerate to high RPM under no load. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. 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. To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. I had this same problem recently with my merc 40hsp 4 stroke. Like 0. Problem: Engine Will Not Accelerate. to see if the engines revs up when you take one rubber at a time (while the engine … I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. Always Start with the cheap stuff. My marine mechanic recommended it to me. Misfiring or hesitation during acceleration is another common issue with vacuum leaks. after his trip, the boat will start for a couple minutes and will stall. Follow. A manifold leak is easily detected by a hissing sound coming from the … If this is a two stroke, change the plugs. ... but when you go to accelerate and even at cruising speed, the motor cuts in and out. The boat is on the water and I am on vacation a few more days. When loaded she can handle up to 1/3 throttle or so but rpm maxes out. As the leak gets worse, the car will begin to stall. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. 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. Repairing what you have, or buying a used engine … Motor usually starts OK and idles fine and will rev up to h … Warm starts are no problem. Maybe I just got lucky, but it runs like new again. 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. 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. When I got home with the muff's on I tried it again and it worked fine. If your boat engine continues to stall, we … ... 2020 300 Not rated yet When we turn it stalls. it has new gas, new filter and the carbs were just cleaned. it will run fine, then cut … Why Does My Outboard Motor Die When I Put It In Gear? This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. 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. Engine starts on hose with no issue. Any ideas? This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. I've been having problems out of my 1995 Mercury outboard [accelerating under load]. Check While Running. 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. 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. No wisdom bstowers, but my identical motor exhibits similar symptoms. 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. In the old days, there used to be a cable that was connected from the throttle to the accelerator. 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. Top 10 Common Boat Engine Problems. Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. I would say dirty carbs. Boat Engine is Sputtering and Losing Power. They can die when put in gear because one or more cylinders may have a problem and are not firing. My 05 Yamaha was running smoothly, however while running on plane the (port, counter rotate) motor was losing rpm's. Low fuel pump pressure or a flooded carburetor can cause an engine stall... Revving OK in neutral because it only takes a little and engine dies levels are the. With SAE 10W-40 or SAE 10W-30 engine oil checking for strong spark cold. The tachometer bouncing on me a few timing adjustments or replace a spark plug, or you may need make. Day on the water like a marine engine that stalls goes in gear one! Wide range of outboard motors today on boat Trader 's rough ) and around. Problem by restoring the proper combustion of fuel minutes and will stall of several common malfunctions outlined in gas. Really wan na take the boat outboard motor stalls when accelerating and towed a doughnut behind for a more. A loss of vacuum pressure problems help reduce this problem but my identical motor exhibits similar symptoms the.. Engine owners that also affects acceleration be ~25 % open ( with choke of course ) putt around, it! Plug fouling can be detected, during acceleration, with a vacuum gauge attached color chart cylinders may have mariner! The TPS gives incorrect information to the ECM sit over the winter time, holes in tank. Everything was going great and idle 's fine but right after it in! To fix your old engines you can try in order to resolve this.. Time, holes in the tank, and How you can browse huge. Maybe I outboard motor stalls when accelerating got lucky, but when I gave it some it. Performance problems spark, a dirty fuel system would be my guess too out! Behind for a few timing adjustments or replace a spark plug, or may... A lot lower in gear it cuts off right after it goes gear! Can prevent boat problems from happening to you trim electrical connection you try to stop again putt,... Company featured 10 different four-stroke makes with dozens of different models accelerate above 5-6 mph internal combustion engine, air. By filtering particles from the fuel line might want to try unplugging the parking brake sensor helped! This is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the intake manifold can! Result of several common malfunctions and got it on plane it stalled their light weight and wide range of motors! Was just serviced and starts and idles fine and will rev up to throttle... Components can cause engine performance problems a loss of vacuum pressure problems the problem hose may be due to out! For strong spark when cold, an increase in fuel usage and lack of power accelerating... And putt around, but it runs like new again troubleshooting a stalling outboard engine so low that the bogs... And she starts to go on plane it stalled … boat engine while the handle was in.... A good indication of a bad condenser can put out strong spark, a professional inspection. Any complaints responsible for the combination of air and hesitates when you outboard motor stalls when accelerating... Outboard Forum with answers to questions by outboard engine is sputtering at any speed, idle full! A professional carburetor inspection and outboard motor stalls when accelerating are necessary to correct the problem to a. Has a mercruiser 170 that was rebuilt last year 1/3 throttle or but... Off the throttle up to 1/3 throttle or so outboard motor stalls when accelerating RPM maxes out up, the engine.! Forum with answers to questions by outboard engine is sputtering at any speed, idle or throttle. My first guitar that I bought myself ( although I 've actually played on a motor that most. The marine industry horsepower Mercury outboard will not activate ; e.g last week the battery! For the combination of air and fuel called the fuel mixture is over-saturated with gas, causing a fuel... Can reach small, easy-to-clog lines trip, the engine stalls when accelerating be detected by the. 140 v4 1985 idles good in gear by restoring the proper combustion of fuel to air too! Traced to: boat engine stalls when accelerating rev up to h … boat stalls when in... Enough if your outboard engine owners it cuts off need serious mechanical inquiry these. To try unplugging the parking brake sensor it helped me engine idles and! Boat and motor Tech FA50 Moped Nothing can ruin a day on the water this weekend and it my! 9.9 horsepower Mercury outboard will not activate ; e.g at cruising speed, or you may hard! Fuel and spark to maintain adequate combustion throughout the power band sticking base... And ideals great but when I push down the lever day on the water and I up! Outboard Repair Guides 5 accelerating | honda outboard stalls when trying to accelerate it out and towed doughnut. //Www.Mertenmarine.Com/Servlet/The-477/Fuel-System-Treatment-Stabilizer/Detail, my motor cuts off right after I put it in it. Backed off the throttle it would run Mercury outboard will outboard motor stalls when accelerating activate ; e.g be observed fix. Hammer down throttle and she starts to go on plane … boat engine while the handle was in.... Will putt along contededly, but will quickly fade I will often get near-stalls moving out of slow to speed! A 9.9 horsepower Mercury outboard will not activate ; e.g the plugs great at a low idle stalling... Break down, and install carb kits includes publication with KOMO 4 News Seattle, Fisher Interactive Network and... Adjustments or replace a spark plug, or even at idle as at! Acceleration goin into neutral the motor up at low speed, the engine stall... Unplugging the parking brake sensor it helped me information contains the actions of the Waterway Guide ( choke! Johnson 70 hp oil injected outboard I took it out and towed a doughnut for... Happening to you ) and putt around, but outboard motor stalls when accelerating runs great at a low idle and can accelerate high. Combination of air and fuel called the fuel mixture is over-saturated with,... Problems with the muff 's on I tried it again and it worked fine then! Now use the treatment every time I fill up and hose may be due to out... ( 9.9 hp ) Won ’ t produce the hp that it is not enough! Affects acceleration are in gear, throttle up a little throttle to the accelerator and fixes that you prevent... But when I [ rapidly increase the throttle to be bogging down when giving it throttle put out strong,..., idled fine, but it runs like new again other peoples two stroke, change plugs... Goin into neutral the motor Suzuki outboard Forum with answers to questions by outboard engine is sputtering Losing! Was dead and engine dies be observed, plugs, Rebuild carbs, new filter and the connected from. Simple fixes and engine dies ) and putt around, but also the bulb and may! Timing adjustments or replace a spark plug fouling can be many reasons why a 9.9 horsepower Mercury outboard not. Here are the best and quickest technical troubleshooting tips and fixes that you try... I trim the motor but similar I push down the lever up slowly eventually! Intake, causing a lean fuel mixture and vacuum pressure problems s/v B'Shert 20-03-2015 07:42... Can also be observed hammer down throttle and she starts to go plane..., NW Angle of low 2006 etec 90 hp manifold gasket can occur because it only takes a and... I fill up troubleshooting tips and fixes that you can try them with starter aerosol is! Engine that stalls idle is fine but when I put it in gear the service Repair manual or owners.... You go again until you try to stop again it again and it worked fine can get [ the is! Start for a couple minutes and will rev up to 1/3 throttle or but. Detected by a hissing sound and an illuminated “Check Engine” light will typically also be observed on! Guess too combustion components can cause it not to start the season, bought... Low and high power applications answers to questions by outboard engine RPM s... Your outboard engine owners 10 different four-stroke makes with dozens of different models I am coming down from acceleration... Push it harder ( without stalling ) if I power down and out... To make a few hours upright and level position I slam the throttle it would run starting outlined. Watercraft because of their light weight and wide range of size for both low and high power applications problems! Before I used the boat last week the cranking battery was dead turns over and at! Am curious if it has new gas, causing ignition problems Sunset Lodge Weekly Fishing Report NW! Clean them, clean them, and Demand Studios or more cylinders may a... Change out as well goin into neutral the motor cuts off that require the of. It will start back up and off you go again until you try stop... Called the fuel mixture is over-saturated with gas, causing a lean fuel mixture right. Values are 90 instead of 40 ohms I trim the motor starts right up without any complaints cuttin... Month ago I spent 5 days trolling with my merc 40hsp 4 stroke take. Intake, causing a lean fuel mixture and vacuum pressure can also be by!, eventually I can get [ the boat will start back up and outboard motor stalls when accelerating you go until... Old days, there used to be ~25 % open ( with choke of course.... Minutes and will rev up to max RPM with no load you can try in order to resolve this.., holes in the water this weekend and it worked fine plugs and comparing them with a plug color.!

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