2004 650 Twin Arctic Cat ATV Service Manual, Page 198Get this manual
Drive Problem: Power not transmitted from engine to wheels Condition Remedy 1Rear axle shaft serration wornbroken 1Replace shaft Problem: Power not transmitted from engine to either front wheel Condition Remedy 1Secondary drivedriven gear teeth broken 1Replace gear(s) 2Propeller shaft serration wornbroken 2Replace shaft 3Coupling damaged 3Replace coupling 4Coupling joint serration worndamaged 4Replace joint 5Front drivedriven bevel gears broken 5Replace gear(s) damaged 6Front differential gearspinions broken 6Replace gearspinions damaged 7Sliding dogshaftfork worndamaged 7Replace gear(s) 8Front drive axle worndamaged 8Replace axle 9Front drive axle serration worndamaged 9Replace axle