3-1INTRODUCTION/PERIODIC MAINTENANCE ANDLUBRICATION INTERVALS CHKADJNOTE:EAS00036PERIODIC CHECKS AND ADJUSTMENTSINTRODUCTIONThis chapter includes all information necessary to perform recommended checks and adjustments. Iffollowed, these preventive maintenance procedures will ensure more reliable vehicle operation, alonger service life and reduce the need for costly overhaul work. This information applies to vehiclesalready in service as well as to new vehicles that are being prepared for sale. All service techniciansshould be familiar with this entire chapter.EAS00037PERIODIC MAINTENANCE AND LUBRICATION INTERVALS The annual checks must be performed every year, except if a kilometer-based maintenance is per-formed instead. From 50,000 km, repeat the maintenance intervals starting from 10,000 km. Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,data and technical skills.NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING( 1,000 km) ANNUALCHECK1 10 20 30 40 CHECK1 * Fuel line(See page 3-34) Check fuel hoses for cracks or damage. 2 * Spark plugs(See page 3 22) Check condition. Clean and regap. (See page 3-22) Replace. 3 * Valves(See page 3-10) Check valve clearance. Adjust. Every 40,000 km4 Air filter element(See page 3-32) Replace. 5 Clutch(See page 3-31) Check operation. Adjust. 6 * Front brake Check operation, fluid level and vehicle for fluid leakage. 6 * (See page 3-41, 43, 45) Replace brake pads. Whenever worn to the limit7 * Rear brake Check operation, fluid level and vehicle for fluid leakage. 7 * (See page 3-42, 43, 45) Replace brake pads. Whenever worn to the limit8 * Brake hoses Check for cracks or damage. 8 * (See page 3-45) Replace. Every 4 years9 * Wheels(See page 4-3) Check runout and for damage. 10 * Tires(See page 3-54) Check tread depth and for damage. Replace if necessary. Check air pressure. Correct if necessary. 11 * Wheel bearings(See page 4-3) Check bearing for looseness or damage. 12 * Swingarm Check operation and for excessive play. 12 * g(See page 4-70) Lubricate with lithium-soap-based grease. Every 50,000 km13 * Steering bearings Check bearing play and steering for roughness. 13 * g g(See page 3-50) Lubricate with lithium-soap-based grease. Every 20,000 km14 * Chassis fasteners(See page 2-21) Make sure that all nuts, bolts and screws are properly tight-ened. 15 Sidestand, centerstand(See page 3-57) Check operation. Lubricate.