carb prob need help please 1986 omc starcraft 140 hp

[viper2000675]

Working on a 1986 omc 140hp starcraft 4 cylinder. It has a Gm Rochester carburetor on it. Runs great wot but when we stop and idle for a min, the motor stops. I'm thinking the carb needs adjusting. Replaced points with electronic ignition the other day. I like to reset the mixture and idle on card to see if I have it adjust wrong. If I go all the way in with the adjustment on the carb, how many turns out on both to get them close to the right adjustment on carb? Also any other ideals on what may be happing to cause this problem? also the adjustment on the carb linkage is adjusted all the way in. Not sure way this is. thanks

 

[cr2k]

Re: carb prob need help please 1986 omc starcraft 140 hp

About 1.5 to start with. You may need to rebuild the carb. Marine carbs aren't like auto carbs that last for many miles. Water environment wreaks havoc on them requiring rebuilding more often.

 

[john cole]

Re: carb prob need help please 1986 omc starcraft 140 hp

I tend to agree, i had to do mine last summer, i was suprised at how gummed up it was. And this new fuel isn't helping at all.