Yamaha (9.9) shuts off at idle problem

hastingsml

Cadet
Joined
Oct 7, 2005
Messages
19
Any suggestions where to start. 9.9 Yamaha (2000). It runs great and never any problems until now. During my last sail I was pulling into marina/slip and running at idle speed as usual. The motor shuts down as if it ran out of gas. When I got it into slip I immediately cranked it back up and it ran fine.

This past weekend I sailed again and at least a dozen times I would lower the throttle to idle speed and no problems until I pulled into the slip on my last trip out. It died again at idle speed. It fired right back up after I got it in the slip and it ran fine.

Pulling into a slip is not the best time for the motor to shut down.

What would cause an intermittent problem of shutting down at idle speed?

Thanks.
 

JUSTINTIME

Captain
Joined
Sep 2, 2006
Messages
3,284
Re: Yamaha (9.9) shuts off at idle problem

carb is starting to gum up
give it a shock treatment of seafoam
 
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