18. EVAPORATIVE/EXHAUST EMISSION CONTROL SYSTEM MAINTENANCE SCHEDULE: (1) PERIODIC MAINTENANCE Service Mileage Item 300 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 System Lubrication Fuel System Air Supply System Engine oil R R R R R R R R R R R R R R R Oil filter screen C C C C C Gear oil R R R R Motor oil filter I I I Fuel filter I I I I Fuel filter screen C C C C Carburetor A A A A Fuel line I I I Air cleaner R R R R R R R Charcoal canister I I I I Secondary air cleaner I R R R Secondary air inlet line I Intake manifold I screw Purge control valve I I I I Air lines I I I Catalytic converter I I I I Cam chain I I I I System Drive Drive chain I I I I Drive belt I I I I Valve clearance I I I I Spark 4-stroke I R System Ignition Others Plug 2-stroke I R R R C.D.I. I I I Ignition system wires I I I Bolts and nuts T T T T T T T T T T T T T T T Brake system A A A A A A A A A A A A A A A I: Inspect, A: Adjust, C: Clean, R: Replace, T: Tighten ·During riding or inspection, if any part is found to be cleaned, adjusted Remarks or replaced, do it directly and take a record if the exhaust emission control system is not seriously affected. It must be reported and approved if the exhaust emission control system is seriously affected. (2) IRREGULAR MAINTENANCE: Item Contents Ignition system Inspect and repair when obvious symptoms of ignition failure, engine overheating and stalling are found frequently. Remove carbon deposits from the exhaust system, cylinder Carbon deposit removal head and piston head when the engine horsepower decreases greatly during the service mileage of 1000015000 km. Transmission system Perform CVT system maintenance and inspection when the engine performance decreases obviously. Severe use in the first 1000 km may cause worn or seized Piston cylinder, piston and piston rings. Clean or replace with new ones if necessary. 18-2