Big waves/fouled plugs

[jonny rotten]

Boats been runnin fine all season.Rolled some 4 ft waves last time out.Rough starting after coming back.Now it wont start in driveway.

Changed inline fuel filter
dumped some gas in carb
NOTHIN
Pulled coil wire have spark.
Is it possible I fouled plugs?Was sorta straight up and down for a while,out for 20 min.

Mercruiser 6 cyl. 19 ft boat

 

[500dollar744ti]

Re: Big waves/fouled plugs

anything is possible, best thing to do is pull a plug out and look for fouling. might of jostled some sediment loose in your float bowl or something causing the carb to flood.

mine started doing something similar and that's what it was, sediment in the carb that had broken free and began to go places it wasn't supposed to. my carb was continuously flooding the engine, had to rebuild it to get things sorted.

some more info on your motor and drive would help. there are multiple 6 cyl. mercruisers made over multiple years...