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Will Excessive Cranking With The Lanyard Off Foul The Plugs?

treeskier

Jetboaters Captain
Messages
318
Reaction score
325
Points
212
Location
Ocean City, MD
Boat Make
Yamaha
Year
2019
Boat Model
275SE
Boat Length
27
Ok without getting into a long and stupid story the readers digest version is... I let someone use the boat (I know dumb but that's another story) and they got out (to a bar) then when they decided to come back they couldn't get either engine to start and cranked the engine until they killed the battery ...then they called me. I went out to the boat later with my jumper pack to start the boat and found the kill switch lanyard laying in the bottom of the boat.

Needless to say I attached the lanyard jumped the boat and off to home I went. However since then I have noticed my port engine doesn't idle very well at cold start up and will stall requiring a re-start. Once the boat is warmed up it starts and runs fine.

Possibly a fouled plug? Thanks
 
I would think that is logical assumption. There are very few people I would let borrow my boat....actually maybe one.
 
2stroke engines would definitely foul plugs doing that because they have carbs and a fuel pump that work off the crank case pressures when the engine rotates
 
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