mercuiser 888 wont idle below 1000 rpm

mauro.

Petty Officer 3rd Class
Joined
Jul 15, 2024
Messages
90
sorry about those spelling errors another symptom is that it misses so not firing in all cylinders
Thank you for all the help
Mauro
 

mauro.

Petty Officer 3rd Class
Joined
Jul 15, 2024
Messages
90
so did a compression test #1 160 #2 145 #3 150 #4 150 #5 150 #6 145 #7 150 #8 145 I don't know what to hold of the 160 Maybe carbon build up?
 
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