PERIODIC MAINTENANCE AND ADJUSTMENT7-17123456789EAU21251CarburetorThe carburetor is an important part ofthe engine and its emission control sys-tem, which requires very sophisticatedadjustment. Therefore, carburetor ad-justments should be left to Yamahadealer, who has the necessary profes-sional knowledge and experience.EAU44734Checking the engine idlingspeedCheck the engine idling speed and, ifnecessary, have it corrected by aYamaha dealer.EAU21384Checking 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.Engine idling speed:1350–1550 r/min1. Throttle grip free play1
