1986 9.9 Yamaha 4 Stroke

samato

Cadet
Joined
Aug 29, 2011
Messages
10
After cleaning the carb and all jets several times. Motor does not want to run correctly still. Motor will idle and respond to throttle good with vacuum hose for auto choke disconnected.

When auto choke Plunger is drawn down motor will not idle good and bogs or dies with throttle response.

Question: Is the running condition with the plunger for auto choke up or pulled down?

What else am I missing here?
 

samato

Cadet
Joined
Aug 29, 2011
Messages
10
Re: 1986 9.9 Yamaha 4 Stroke

I for got to add that this motor had sat for several years and carb was gunked up and would not start to begin with.
 
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