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91 Yamaha 200 V6 surging when I hit 3600RPM

Thread starter Road Racer
Start date Oct 1, 2007

R

Road Racer

Cadet

Thread starter

Oct 1, 2007

#1

It is a two stroke. When I hit 3600 RPM the motor surges from 3600 to 4000
RPM every five or ten seconds. What could cause that?

JUSTINTIME

Captain

Oct 1, 2007

#2

Re: 91 Yamaha 200 V6 surging when I hit 3600RPM

fuel bulb staying hard?

R

rodbolt

Supreme Mariner

Oct 1, 2007

#3

Re: 91 Yamaha 200 V6 surging when I hit 3600RPM

bad fuel pumps,leaking fuel lines, restricted fuel lines. lots of things will cause a surge.

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