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yamaha triple 750

  1. oldie yamaha 750 triple stumbles between 4200 and 5800rpm, fine otherwise

    Mechanics Corner
    Hello, I inherited a Yamaha 750 triple which starts fine, and pulls hard up to 4200rpm or so, then it is sputter and cough until about 5800 rpm, when it pulls hard again right through redline. That's the highway speed cruising zone for the motor, so to accelerate I have to kick down to third...