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YAMAHA 6J8 1989 30 2 STROKE CHOKE PROBLEM

"Hello from Greece.
I have a


"Hello from Greece.
I have a 1989 Yamaha 30 3 cylinder 2 stroke outboard. Last year was running fine, except some electric problems that i fixed. Now i was travelling full throttle and suddenly i had big loss off power and went out. I managed to go out with almost full choke. It turned out that the fuel pump was destroyed. I fixed it but from then i have problems. The engine works fine at idle speed and when i'm attempting to give full throttle it stalls?. I have to use choke at more throttle and again i have very pure performance with noise. I have changed plugs, cleaned carbs (old carbs), changed fuel, fuel pump, but nothing yet.I think that there is to much air.
PLS help..."
 
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