1985 Merc 90 idles too fast

floaterdude

Cadet
Joined
Nov 5, 2002
Messages
6
I have recently re-timed and synched this outboard and now it starts way easier but seems to idle too fast. It makes a more audible clunk when engaging into drive. The butterflies are completely closed and only the small holes in them allow air. I think the previous owner retarded the timing to slow it down but that creates excess stinky exhaust and hard starting. This is the inline6 with 3 carbs. Any thoughts?
 
Top