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transmission

  1. GEARS LOCKING UP

    YFZ Powertrain
    08 YFZ 450 SE: after engine rebuild, I'm having a transmission issue i can not figure out. engine running perfect, go to shift down into 1st gear, i can hear the shift, i can feel the gears move, but... i let the clutch out, the quad will move about a foot and the rear tires lock up. some...
  2. 08 YFZ 450 SE transmission issue

    YFZ Powertrain
    08 yfz 450... hot rods stroker kit, everything else basically stock. rebuilt engine, replaced 1st gear. engine fires right up, sounds great!! ran 5 or so heat cycles on new build. went for maiden ride, shifted into 5th gear...going smooth, then the transmission locked up. pulled in clutch...
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