2011 Yamaha Motorsports C3 Owners Manual - Page 50
2011 Yamaha Motorsports C3 Manual
Page 50 highlights
EAU1722A PERIODIC MAINTENANCE AND ADJUSTMENT EAU21401 EAUT2151 Valve clearance 1 2 3 4 5 6 7 8 9 Tires To maximize the performance, durability, and safe operation of your scooter, note the following points regarding the specified tires. Tire inspection The valve clearance changes with use, resulting in improper air-fuel mixture and/or engine noise. To prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart. 1 2 Tire air pressure The tire air pressure should be checked and, if necessary, adjusted before each ride. EWA10511 ZAUM00** 1. Tire tread depth 2. Tire sidewall WARNING Never overload your vehicle. Operation of an overloaded vehicle could cause an accident. Tire air pressure* (measured on cold tires): Front: 175 kPa (1.75 kgf/cm2, 25 psi) Rear: 175 kPa (1.75 kgf/cm2, 25 psi) Always check the tires before operating the scooter. If a tire tread shows crosswise lines (minimum tread depth), if the tire has a nail or glass fragments in it, or if the sidewall is cracked, contact a Yamaha dealer immediately and have the tire replaced. Minimum tire tread depth (front and rear): 0.8 mm (0.03 in) 6-15