8-6ESU03701Adjusting the engine idling speedCAUTION:@ Be sure to have a Yamaha dealer make thisadjustment. Make sure that the throttle lever moves smoothly. Make sure that the carburetor is synchronizedfirst.@1. Start the engine and warm it up.NOTE:@Refer to the “Starting the engine” section.@2. Turn the throttle stop screw 1 in or out to adjust theengine idle speed.ESU01472Adjusting the throttle cableCAUTION:@Be sure to adjust the engine idle speed first.@1. Loosen the locknut.2. Turn the adjuster in or out until the proper throttlelever free play is achieved.1 Locknut2 Adjuster3. Tighten the locknut.Standard engine idle speed: 1,600 ± 100 r/minThrottle lever free play a:1.0–2.0 mm (0.04–0.08 in)