Mercruiser 888

Scott06

Admiral
Joined
Apr 20, 2014
Messages
6,428
Do you think that will make quite the difference?
Kenny has been around the block maintenance wise. Obviously he would not be suggesting it if he didn’t think it was part of the issue.

Likely the carb set up for a universal automotive application is not either sized or jetted correctly for marine loads and the altitude u are running at

What do the spark plugs look like
 
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