D MINOR REPAIR6-18EAU21251etorburetor is an important part ofne and its emission control sys-ich requires very sophisticatedent. Therefore, carburetor ad-s should be left to Yamahaho has the necessary profes-owledge and experience.EAU21311Checking the engine idlingspeedThe engine idling speed must bechecked as follows and, if necessary,adjusted by a Yamaha dealer at the in-tervals specified in the periodic mainte-nance and lubrication chart.Start the engine and warm it up for sev-eral minutes at 1000–2000 r/min whileoccasionally revving it to 4000–5000 r/min.NOTE:The engine is warm when it quickly re-sponds to the throttle.Engine idling speed:1300–1500 r/min
