80 250 Enticer- Motor revving up and down

strokedis

New member
Joined
Jan 5, 2014
Messages
3
Location
MN
I would like to get a few suggestions on this. It starts and idles for a few seconds then pics up to around 1/3 throttle then almost dies and keeps repeating.
We thinking carb/fuel pump, bad pulse or something else? Any thoughts would be very much appreciated.
 

Does the level stay steady (within reason) as the rpms fluctuate at idle?
 
Sound like a vacuum leak between carb and motor. check fuel filter, threaded cap that the fuel line comes out of on bottom of tank. just some ideas.
 


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