SamStrobert
Cadet
- Joined
- Jul 31, 2003
- Messages
- 8
My son and I have a 1988 Mercury inboard/outboard 3.0L gas engine with a 2 barrel carb (tag 1389-9562)that starts easy, runs fine above 3000 rpm but will only idle if I hold the choke almost (2 or 3 millimeters) closed. It ran fine last year. I've put in new float and new spring jet in base of float bowl. I assume it is idle adjustment and don't know where this is. Is it hidden so I won't pollute?! There is a needle valve under the carb near the intake manifold that does not seem to do anything. I think this might be a high speed idle?
