Yamaha 115hp 4 stroke engine doesn't start after sudden stop.

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Jul 25, 2015
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33
My engine doesn't start immediately after I stop the boat engine quickly. It only happens when I stop the engine quickly after cruising and RPM is high. It doesn't happen when I am idling or I cruise and slow down the boat gradually and finally stop the engine.

Symptoms: engine turns over, fuel pump is soft. I start pumping the fuel pump holding it correctly and pump fuel into engine. I start the engine 20 times. First it doesn't start, then it starts but dies immediately. Finally starts and idles and I can speed up...

Facts: I have only one engine on my boat, battery fully charged, fuel filter replaced a year ago, fuel filter has been checked....

It sounds like fuel problem.... The strange thing that it only happens when I stop the boat immediately or quick slow down AND STOPPING THE ENGINE IMMEDIATELY AFTER... it never happens when I gradually slow down from plane and stop the engine...

Any ideas??? :)
 

photographer

Seaman Apprentice
Joined
Jul 25, 2015
Messages
33
I have talked to my friend and he has the same problem with a Envirude 2 stroke engine..... Anybody has the same problem...?
 
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