Periodic maintenance and adjustment7-17123456789101112EAU41222Cleaning the spark arresterThe spark arrester should be cleanedat the intervals specified in the periodicmaintenance and lubrication chart.WARNINGEWA10981 Always let the exhaust systemcool prior to touching exhaustcomponents. Do not start the engine whencleaning the exhaust system.1. Remove the tailpipe by removingthe screw, and then pulling it out ofthe muffler.2. Tap the tailpipe lightly, and thenuse a wire brush to remove anycarbon deposits from the spark ar-rester portion of the tailpipe and in-side of the tailpipe housing.3. Insert the tailpipe into the muffler,and then install and tighten thescrew.TIPMake sure to align the screw hole wheninserting the tailpipe.EAU44735Checking the engine idlingspeedCheck the engine idling speed and, ifnecessary, have it corrected by aYamaha dealer.1. Screw11. Tailpipe2. Spark arrester12Engine idling speed:1300–1600 r/min