03 Yamaha 90 hp 2 stroke carb 2 problem

genofish

Cadet
Joined
Apr 27, 2007
Messages
8
The second carb has excessive gas coming out of it shortly after start up causing motor to bog down. I cleaned carb, put back on but same problem. Would the prime start be suspect?
Thanks
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: 03 Yamaha 90 hp 2 stroke carb 2 problem

Sounds like your float needle valve seat has gone bad on that carb, overfilling and flooding that cylinder.
 

genofish

Cadet
Joined
Apr 27, 2007
Messages
8
Re: 03 Yamaha 90 hp 2 stroke carb 2 problem

could it also be a bad reed valve? I am going to rebuild carb first
 
Joined
Oct 28, 2010
Messages
923
Re: 03 Yamaha 90 hp 2 stroke carb 2 problem

Probably not, but like mentioned you are going to have to take the carb off again and check/replace the needles. Did you put new kits in?
 
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