petrol running from top of carb

antali

Cadet
Joined
Jan 12, 2007
Messages
6
thought i would change the impellor on my 80,s yam 15hp when finished i pressurised fuel system with bulb and noticed petrol pouring out of the top of the carb also ran badly ,did have the engine a bit more than vertical when doing the impeller,what do i need to do to rectify this problem as it ran fine this morning....anticipated thanks....antali
 

JUSTINTIME

Captain
Joined
Sep 2, 2006
Messages
3,284
Re: petrol running from top of carb

if the motor was in the tilt range u are fine
if the motor was still in the trim mode u could have a bad float setting or bad float

but if it ran fine, i would pull the plugs and look at them
 

Ray Neudecker

Lieutenant Commander
Joined
May 25, 2004
Messages
1,656
Re: petrol running from top of carb

This is normally a sticking needle problem. Best to tear down the carb, clean throughly and reassemble with new carb kit including needle and seat.
 

antali

Cadet
Joined
Jan 12, 2007
Messages
6
Re: petrol running from top of carb

thanks justintime and ray will strip carb today and check float and needle
 

antali

Cadet
Joined
Jan 12, 2007
Messages
6
Re: petrol running from top of carb

stripped the carb today and found the needle stuck so replaced it,and it goes well now, thankyou for your help.
 
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