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throttel

  1. N

    Fe 390 Throttel to start

    Bike: 2010 Fe 390 Modifications: Slip-on muffler, 570 air box, mapping switch (on #1/traction), and Crank case hose is disconnected from air box. My attempts to resolve: new plug, fresh gas, new air filter, and new battery Problem: Has always needs just a touch of throttle to start. Thanks...