08 TKS 3.0 wont start without 1/2 throttle when warm.

Willy.Fire

Cadet
Joined
Apr 26, 2017
Messages
16
As the tittle says. The engine runs great but the only problem im having with it right now is when I shut the boat off after its been running and at full temp it will not just start when tuning the key. Initial cold start up is good couple pumps is how I always start these and it takes off right away always when cold with around 1/4 throttle. Any ideas? I'm going to run some sea-foam through it today to see if that helps clean something out. I have thought trying idle mixture screw? I have adjusted a older 3.0 in the water but I don't have the service manual for the newer tks and do not see the screw. Any ideas? It still works and I know how to get it running but would sure be nice to have it start right up. Does anyone have a link to a full pdf for a 2008 3.0 mercruiser that I could d/l and print off? Thanks
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,468
Ayuh,... Welcome Aboard,.... Sure sounds like a carb problem to me,.....
 
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