Air in a fuel system....where to start?

finz2right

Member
Joined
Mar 17, 2005
RO Number
16622
Messages
144
I've got ol' trusty..until now....

On my lil Whaler, I've got a 1983 25 hp Mariner (yamaha) that runs great...but this summer every time the engine runs more than about 50% throttle and dies... I checked the ball on the fuel line and the priming ball is soft and the plastic bowl under the cowling is only about 1/2 full of fuel.

I have looked everywhere for where the air is coming in...any suggestions?
 
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