2012 Yamaha Motorsports Zuma 50F Owners Manual - Page 52
2012 Yamaha Motorsports Zuma 50F Manual
Page 52 highlights
EAU1722A PERIODIC MAINTENANCE AND ADJUSTMENT EAU44734 EAU21384 EAU21401 Checking the engine idling speed 1 2 3 4 5 6 7 8 9 Engine idling speed: 2000 - 2200 r/min Checking the throttle grip free play The throttle grip free play should measure 3.0 - 5.0 mm (0.12 - 0.20 in) at the inner edge of the throttle grip. Periodically check the throttle grip free play and, if necessary, have a Yamaha dealer adjust it. Valve clearance 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. Check the engine idling speed and, if necessary, have it corrected by a Yamaha dealer. 6-16