If it isn't one thing, it's another...........

[Fred T]

Gents
A week or so we fixed a trim issue. Now the boat has been run for the first time this year. Everything went as well as it could have. I have a carry over problem from last year. The motor stalls out if you dont do a pretty speedy shift into forward or into reverse. As well at lo speed the carbs kinds pop and sputter some and some times it just stalls out. The gas is last years and was treated with a good dose of STABIL before being put away. Maybe new sparkplugs wouldn't hurt but the problem was there last year so it is time to get it fixed. It got a little better when I raised the idle speed but since I do not have a tach or even a hand held one I am pretty much in the dark as far as idle speed is concerned and I am a little afraid of screwing something up by having to high of an idle speed SO.... please share your opinions with me.
I should also add, the motor is a 1990 90 hp pushing a 19 ft Spectrum.
Thanks to all

Fred T

 

[tjello327]

Re: If it isn't one thing, it another...........

Re: If it isn't one thing, it another...........

Sounds like a fuel issue to me. first check spark on all the cylinders to rule that out. If all is good there, I think a good carb cleaning would work wonders. Be sure all of the little air passages are clear. Also check to see if your choke plates are not hanging closed a little when the engine is warmed up.

 

[john from md]

Re: If it isn't one thing, it's another...........

The engine is running too lean. Do a carb clean and then adjust the carb/timing linkage per the book. After that is done, adjust the mixture screw out 1 1/8 and follow the book on how to adjust your idle mixture.

When it is in the water, tie up to two pilings at the dock and put the engine into forward gear. Adjust your idle to 700-750 in gear.

John