90 HP Johnson idle trouble with engine tilted up.

[bertherr]

My 1981 90 HP Johnson will stall when idling with the engine tilted up. It runs fine at all open throttle speeds. Idle at trimed down position is a little rough. I need to squeeze the primer bulb to start after it stalls with the engine tilted up. About 1-1/2 years ago the fuel pump was replaced and the carbs were rebuilt. The replacement float needles did not have rubber tips like the old ones. Thanks for any advice. Bert.

 

[JB]

Re: 90 HP Johnson idle trouble with engine tilted up.

Hey, Bert. Float type carbs aren't meant to operate except at near-level angles.<br /><br />Tight lines.<br />JB

 

[bertherr]

Re: 90 HP Johnson idle trouble with engine tilted up.

Thanks tight lines. Any ideads on the float needles?

 

[mbb]

Re: 90 HP Johnson idle trouble with engine tilted up.

your needles were upgraded because additives in todays fuels would swell them and make them not work properly.