Honda outboard stalls when accelerating | Honda outboard stalls when accelerating my boat is in the shop for this same issue right now it wasnt my carbs it was my spark box. 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 just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. Any thoughts? Bob: jimh: ⦠Outboard motor stalls when accelerating - dn.flightaviation.it Model number J35QLEUR. If your boat engine continues to stall, we ⦠It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. My marine mechanic recommended it to me. When loaded she can handle up to 1/3 throttle or so but rpm maxes out. A hissing sound and an illuminated âCheck Engineâ light will typically also be observed. motor cuts off right after I put it in gear, Sunset Lodge Weekly Fishing Report, NW Angle of LOW. 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. Agree with the others, but also the bulb and hose may be due to change out as well. Copyright © 2021 Lake-Link Inc. All rights reserved. The engine can stall for no reason and without any warning. 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. Makes a ⦠Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. If this is a two stroke, change the plugs. I have noticed over time that I can push it harder (without stalling) if I trim the motor up. He is a current Pre-Med student at Walla Walla University. Gary Reich is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the marine industry. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. The result is poor acceleration, rough idle and stalling. If I power down and try to power up quickly, it bogs down or completely stalls out. For background, I bought this motor used a month ago. All good now. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. Motor usually starts OK and idles fine and will rev up to h ⦠read more does it clunk when put in gear? Maybe I just got lucky, but it runs like new again. The boatâs motor will still operate and function as it should, but the lack of a connection between the propshaft and propeller blades drastically reduces the boatâs top speed. This ethanol in the gas is really hurtin alot of motors. Your boat feels like it's running out ⦠You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. If oil levels are below the "L" mark, refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil. To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. 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. There are several methods to troubleshooting a stalling outboard engine. I suspect the fuel pump but a local ⦠... Any Mercury 9.9 HP outboard engine that wonât start should begin working if ⦠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. Wipe the dipstick with a cloth, reinsert it fully, then remove it and check the oil mark on the side of the dipstick. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. it will run fine, then cut ⦠by Dan Harkins. If I slam the throttle down it will hesatate and then start to go. 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. Each had unique engineering specs, power capabilities and intended uses. It turns over and runs for a few seconds, but then stalls out again. I had this same problem recently with my merc 40hsp 4 stroke. Yamaha 115 outboard vibration at idle. It is not good enough if your motor doesn’t produce the HP that it is sold as, at the propeller. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. I've been having issue with my Yamaha Outboard for the last year. 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 ⦠Motor started fine, idled fine, but when I gave it some gas it wanted to die. 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. Maybe I just got lucky, but it runs like new again. 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. Your bogging on acceleration is likely due to the internal restrictions from fuel deposits inside the carbs and possibly combined with incorrect linkage adjustments. A stalling boat engine may or may not give you any warning. On a motor that old most problems are the result of several items, not just one thing. This happens when the TPS gives incorrect information to the ECM. Happy motoring. Another possible cause is an air leak in the fuel line. 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. Warm starts are no problem. What could be the issue? Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. to see if the engines revs up when you take one rubber at a time (while the engine ⦠If I backed off the throttle it would run. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. the motor is a 35hp Johnson. I have a 2 stroke 25 hp tohatsu outboard. Ensure that the outboard motor is in an upright and level position. The engine can stall at high speed, at low speed, or even at idle. If I backed off the throttle it would run. S/V B'Shert 20-03-2015, 07:42 I will start at the beginning. Boat Engine Stalls When Accelerating. Yep, a dirty fuel system would be my guess too. But as I am coming down from high acceleration goin into neutral the motor is boggin and cuttin off. Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. Plenty of fuel in the tank, and there is a new fuel/water separator. You can try them with starter aerosol (is that the correct name for it?) I can idle (sometimes it's rough) and putt around, but the engine stalls when I accelerate above 5-6 mph. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. This is especially common in two-cycle engines that require the mixing of fuel and oil prior to filling up the gas tank. The âin gearâ RPMâs should be around 700-800. 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. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. Jump to Latest Follow 1 - 9 of 9 Posts ... now I have some more and responses to the questions some of you asked. The tiniest of leaks can cause engine performance problems. Is there a good manual for fixing the motor? It runs great at a low idle and can accelerate to high RPM under no load. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. 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. Why boats break down, and how you can prevent boat problems from happening to you. Nothing can ruin a day on the water like a marine engine that stalls. If you believe a spun prop is to blame for your boatâs inability to produce speed at full throttle, you should take it a repair shop or marina immediately. If I backed off the throttle it would run. Suzuki Outboard Forum. 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. If it does stall it will start back up ok and idle good. I am curious if it has anything to do with the tilt set. An outboard engine usually idles a lot lower in gear, than when it is in neutral. Boat Engine is Sputtering and Losing Power. 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 itâs visible, the fitting between the line and ⦠The carburetor is responsible for the combination of air and fuel called the fuel mixture. Outboard Marine Motor bogs down when giving it throttle. 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. http://www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts off right after I put it in gear. Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. Mercury 9.9HP (9.9 HP) Won’t Start or Stalls After Starting. 50 hp Yamaha outboard motor stalling? 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. New carb kits installed, link and synk, good comp and spark, fuel system ok. This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. 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. This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. If I nudge it up slowly, eventually I can get [the boat] on aplan and run like heck. 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. 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. Not rated yet 150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. The cranks planes off and runs at high speed great. Then the motor stalls when I try to accelerate. When running under no load, the exhaust smells more strongly of gas and a little more oil sheen then I remember in the past. 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