backfire when throttle up

F

fireguy25

Cadet
Joined
Apr 18, 2010
Messages
8
At idle runs fine I can throttle up slow but I can't give it a good harp from a stand still could this be electrical or Carb or even possibly fuel related
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: backfire when throttle up

Sounds like fuel issues. lean condition causes the backfire. Accelerator pump working?
 
K

klyons20

Recruit
Joined
Jul 16, 2011
Messages
4
Re: backfire when throttle up

Remove carb use carb cleaner take apart and spray and clean all pieces put back.
 
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