Yamaha YZ85M 2021 Owner's Manual

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Periodic maintenance and adjustment7-137EAU44391Adjusting the engine idlingspeedThe engine idling speed must be ad-justed when necessary.1. Start the engine and thoroughlywarm it up.2. Turn the throttle stop screw untilthe engine runs at the lowest pos-sible speed.3. To increase the engine idlingspeed, turn the throttle stop screwin direction (a). To decrease theengine idling speed, turn the throt-tle stop screw in direction (b).EAU48434Adjusting the throttle grip freeplayMeasure the throttle grip free play asshown.Periodically check the throttle grip freeplay and, if necessary, adjust it as fol-lows.TIPThe engine idling speed must be cor-rectly adjusted before checking andadjusting the throttle grip free play.1. Slide the rubber cover back.2. Loosen the locknut.3. To increase the throttle grip freeplay, turn the adjusting nut in di-rection (a). To decrease the throt-tle grip free play, turn the adjustingnut in direction (b).1. Throttle stop screw1. Throttle grip free playThrottle grip free play:3.0–6.0 mm (0.12–0.24 in)