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11:1 spark nock ping

  1. Engine/EFI/Drivetrain
    I havent found a definate answer yet. I'm building a 2000 400ex into 416 and need some pointers. I bought the bike cheap (blown up) and have a little money to put into the motor. I wanted to make it into a 416 because reliability is my main concern, but I don't want to run race gas through it...