Engine Warm
- Engine should be at operating temperature. Check valve clearance. All electrical switches should be off. Connect tachometer. There should be play between knurled head bolt and lever.
- Start engine. Loosen lock nut on adjusting screw and adjust speed of warm engine. Turn knurled head screw until play between lever and knurled head is .020-.039" (.5-1.0 mm). Check and if necessary, correct throttle and transmission linkage adjustment after adjusting idle speed. See Fig 1.