LoonLovers
Registered Member
- City
- Marcy
- State
- NY
I have a 2011 Yamaha 115 HP on a 191FS that is stalling on initial acceleration. If I start and run the engine on idle for a couple of minutes and then start to accelerate, I almost always get a stall within about 30 seconds. If I throttle back fast enough, I can keep from completely stalling out. Once the stall condition is encountered and the engine is restarted if necessary, the problem does not occur again. The problem does not appear to occur differently based on the load in the boat (2 or 7 people).
The engine is a YF115XA with about 40 hours on it. A local Yamaha dealer ran diagnostics and has found no problems or error codes. The dealer suggested solution to the problem would be to fully instrument the engine and then take it out for a few rides and hope that the stall occurs.
If I squeeze the primer bulb prior to starting, that seems to help most, but not all of the time.
When I was using 87 octane fuel (with ethanol), I was using K100 fuel stabilizer. The fuel stabilizer did not seem to make a difference.
I have been able to get 91 octane (no ethanol) fuel locally and have run about 30 gallons of that through the engine. The 91 octane and squeezing the rimer bulb has almost eliminated the problem, but not always. I plan on running the 91 octane for a while longer to see if that clears up the stalling.
I would like to eliminate this problem. It is embarrassing to show off a new boat and have it stall.
Has anyone encountered anything similar?
The engine is a YF115XA with about 40 hours on it. A local Yamaha dealer ran diagnostics and has found no problems or error codes. The dealer suggested solution to the problem would be to fully instrument the engine and then take it out for a few rides and hope that the stall occurs.
If I squeeze the primer bulb prior to starting, that seems to help most, but not all of the time.
When I was using 87 octane fuel (with ethanol), I was using K100 fuel stabilizer. The fuel stabilizer did not seem to make a difference.
I have been able to get 91 octane (no ethanol) fuel locally and have run about 30 gallons of that through the engine. The 91 octane and squeezing the rimer bulb has almost eliminated the problem, but not always. I plan on running the 91 octane for a while longer to see if that clears up the stalling.
I would like to eliminate this problem. It is embarrassing to show off a new boat and have it stall.
Has anyone encountered anything similar?