89 Mercruiser 4.3 won't idle

[leftyhd]

Bought my first boat last year. It's an 89 SeaRay 200 with 4.3l motor with a 4bbl carb. Ran great all last year...had my friend who's a long time boater fog the motor for me this last winter. Now, I go to get her ready for the season and it starts up fine, but won't idel. If I gether her up to 2k rpms and slowly back the throttle down, she cuts out. after letting it warm up to temp for 15-20 mins. the rpms slowly drop to like 1000. But if I try to bring it back to neutral to let it idle it dies right out. Gonna check around for a fuel filter tomorrow(Sunday) and hope I can find one. Also gonna pull a plug. Does it sound like water in fuel? Throttle is also very responsive, when I push her forward the motor jumps right up.

Any suggestions would be great. Thanks

 

[maxxman04]

Re: 89 Mercruiser 4.3 won't idle

i'd say start with the fuel filter. does not sound like water.

 

[leftyhd]

Re: 89 Mercruiser 4.3 won't idle

Changed fuel filters...no help. Adjusted carb....no help. Think idle circuit on carb is f'd. Took it off and sent to carb shop foefull clean and rebuild. Certainly won't hurt but I'm pretty sure that's it.

Thanks for feedback!

 

[Evinrude Boater]

Re: 89 Mercruiser 4.3 won't idle

Did Buddy put fuel stabilizer in the tank for the winter?