2008 Yamaha Motorsports Morphous Owners Manual - Page 68

PERIODIC MAINTENANCE AND MINOR REPAIR EAU21992 1 2 3 4 5 6 Front tire: Size: 120/70-13M/C 53P Manufacturer/model: DUNLOP/D305F Rear tire: Size: 130/70-13M/C 63P Manufacturer/model: DUNLOP/D305 EWA10580 Cast wheels To maximize the performance, durability, and safe operation of your vehicle, note the following points regarding the specified wheels. G The wheel rims should be checked for cracks, bends, warpage or damage before each ride. If any damage is found, have a Yamaha dealer replace the wheel. Do not attempt even the smallest repair to the wheel. A deformed or cracked wheel must be replaced. G The wheel should be balanced whenever either the tire or wheel has been changed or replaced. An unbalanced wheel can result in poor performance, adverse handling characteristics, and a shortened tire life. G Ride at moderate speeds after changing a tire since the tire surface must first be "broken in" for it to develop its optimal characteristics. G After repairing or replacing the rear tire, tighten the valve stem nut and locknut to the specified torques. 6-26 1 2 1. Valve stem nut 2. Valve stem locknut G G 7 8 9 WARNING It is dangerous to ride with a worn-out tire. When a tire tread begins to show crosswise lines, have a Yamaha dealer replace the tire immediately. The replacement of all wheeland brake-related parts, including the tires, should be left to a Yamaha dealer, who has the necessary professional knowledge and experience. Tightening torques: Valve stem nut: 1.5 Nm (0.2 m·kgf, 1.1 ft·lbf) Valve stem locknut: 3.0 Nm (0.3 m·kgf, 2.2 ft·lbf)