Yamaha 4 stroke 9.9 misses

lejense

Recruit
Joined
Jun 5, 2003
Messages
1
My 9.9 4 stroke idles well then when ran faster it runs up then cuts out keeps doing this it well not run faster than idle,like rrrrrr--cuts out then rrrrr, wentthrough carb and loked good a little dirt but nothing plugged any help well be appreciated
 

jim dozier

Lieutenant Commander
Joined
Jan 8, 2003
Messages
1,970
Re: Yamaha 4 stroke 9.9 misses

Try pumping the fuel bulb as you increase the throttle, if that works your fuel pump is in need od a rebuild. Also may sure you tank vent is open and venting properly. Does choking it help?
 
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