PERIODIC MAINTENANCE AND ADJUSTMENT6-13123456789101112EAU44735Checking the engine idlingspeedCheck the engine idling speed and, ifnecessary, have it corrected by aYamaha dealer.EAU21385Checking the throttle grip freeplayThe throttle grip free play should mea-sure 3.0–5.0 mm (0.12–0.20 in) at theinner edge of the throttle grip. Periodi-cally check the throttle grip free playand, if necessary, have a Yamahadealer adjust it.EAU21402Valve clearanceThe valve clearance changes with use,resulting in improper air-fuel mixtureand/or engine noise. To prevent thisfrom occurring, the valve clearancemust be adjusted by a Yamaha dealerat the intervals specified in the periodicmaintenance and lubrication chart.Engine idling speed:1200–1400 r/min1. Throttle grip free play1