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1989 Yamaha 25 hp will not go clean when full trottle.

F

Frank Haugan

New member
Hi there!

I hope there is someone that can give me a hint what can be the possible reason for my engine not will give WOT.
The Engine is easy starting, and it go very well at low, but when i try to give WOT little happens.
I tryed to pull the shoke but hi only did go slower, so it seems that it get enought fuel.

The engine is an 1989 Yamaha 25 hp.

Best regards,
Frank
 
Check your fuel hose connectors. The hose from the tank to the motor, that is.
Had a similar problem - after long search found that the connector to the tank had a worn gasket and was sucking air at higher throttle levels. Changed both connectors and the problem disappeared.
 
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