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  1. #1

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    HELP!! VX110 won't go over 35 mph

    I have a 2 2005 vx110 Yamahas. one will get out and run 54 mph and the other one will only go 35 and acts like it is in slow mode, but this model does not have that feature. I have checked the exhaust for blockage, all clear, compression is 140 in all 4, plugs new, fuel pressure 50 psi, self diagnose, no codes, replaced jet assembly from one to the other, same thing. all 4 cylinders are firing. any help would be great. thanks


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    Quote Originally Posted by terkkata View Post
    I have a 2 2005 vx110 Yamahas. one will get out and run 54 mph and the other one will only go 35 and acts like it is in slow mode, but this model does not have that feature. I have checked the exhaust for blockage, all clear, compression is 140 in all 4, plugs new, fuel pressure 50 psi, self diagnose, no codes, replaced jet assembly from one to the other, same thing. all 4 cylinders are firing. any help would be great. thanks
    what are the peak rpms?

    are the plugs really wet/black like excessive fuel?

    also if the battery is weak it will effect the ignition system

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