outboard motor stalls when accelerating

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

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