User manual YAMAHA WR426F-2002

[. . . ] If you have any questions concerning the operation or maintenance of your motorcycle, please consult a Yamaha dealer. The design and manufacture of this Yamaha motorcycle fully comply with the emissions standards for clean air applicable at the date of manufacture. Yamaha has met these standards without reducing the performance or economy of operation of the motorcycle. To maintain these high standards, it is important that you and your Yamaha dealer pay close attention to the recommended maintenance schedules and operating instructions contained within this manual. IMPORTANT MANUAL INFORMATION EAU10130 Particularly important information is distinguished in this manual by the following notations: The Safety Alert Symbol means ATTENTION! [. . . ] However, additional tools such as a torque wrench may be necessary to perform certain maintenance work correctly. NOTE: If you do not have the tools or experience required for a particular job, have a Yamaha dealer perform it for you. 6 6-1 PERIODIC MAINTENANCE AND MINOR REPAIR EWA10340 WARNING Modifications not approved by Yamaha may cause loss of performance, excessive emissions, and render the vehicle unsafe for use. Consult a Yamaha dealer before attempting any changes. 6 6-2 PERIODIC MAINTENANCE AND MINOR REPAIR EAU17600 Periodic maintenance chart for the emission control system INITIAL No. ITEM ROUTINE 600 mi (1000 km) or 1 month 4000 mi (7000 km) or 6 months ODOMETER READINGS 8000 mi 12000 mi 16000 mi 20000 mi (13000 km) (19000 km) (25000 km) (31000 km) or or or or 12 months 18 months 24 months 30 months Replace. 1* 2* Fuel line Fuel filter · Check fuel hoses for cracks or damage. 3 Spark plugs Replace. Replace. 4* Valve clearance Crankcase breather system Carburetor synchronization Idle speed 6 5* 6* 7* 8* Exhaust system Evaporative emission control system (For California only) 9* * Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service. 6-3 PERIODIC MAINTENANCE AND MINOR REPAIR EAU32182 General maintenance and lubrication chart INITIAL No. ITEM ROUTINE 600 mi (1000 km) or 1 month 4000 mi (7000 km) or 6 months ODOMETER READINGS 8000 mi 12000 mi 16000 mi 20000 mi (13000 km) (19000 km) (25000 km) (31000 km) or or or or 12 months 18 months 24 months 30 months 1* 2* Air filter element Clutch · Clean with compressed air. · Replace if necessary. 3* Front brake 4* Rear brake 6 5* 6* Brake hoses Wheels Every 4 years 7* Tires 8* Wheel bearings 6-4 PERIODIC MAINTENANCE AND MINOR REPAIR INITIAL No. ITEM ROUTINE 600 mi (1000 km) or 1 month 4000 mi (7000 km) or 6 months ODOMETER READINGS 8000 mi 12000 mi 16000 mi 20000 mi (13000 km) (19000 km) (25000 km) (31000 km) or or or or 12 months 18 months 24 months 30 months 9* Swingarm pivot bearings · Check bearing assemblies for looseness. · Moderately repack with lithiumsoap-based grease every 16000 mi (25000 km) or 24 months. Spark plug gap Specified spark plug: NGK/BPR7ES DENSO/W22EPR-U Spark plug gap: 0. 7­0. 8 mm (0. 028­0. 031 in) To check the spark plugs 1. Check that the porcelain insulator around the center electrode on each spark plug is a medium-tolight tan (the ideal color when the vehicle is ridden normally). Check that all spark plugs installed in the engine have the same color. To install a spark plug 1. Measure the spark plug gap with a wire thickness gauge and, if necessary, adjust the gap to specification. 2. Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. Install the spark plug with the spark plug wrench, and then tighten it to the specified torque. Tightening torque: Spark plug: 20 Nm (2. 0 m·kgf, 14. 5 ft·lbf) 6 6-9 PERIODIC MAINTENANCE AND MINOR REPAIR EAU19672 EAU19822 NOTE: If a torque wrench is not available when installing a spark plug, a good estimate of the correct torque is 1/4­1/2 turn past finger tight. However, the spark plug should be tightened to the specified torque as soon as possible. Place the spark plug cover in the original position. Canister (for California only) Engine oil The engine oil level should be checked before each ride. In addition, the oil must be changed and the oil filter element replaced at the intervals specified in the periodic maintenance and lubrication chart. Place the vehicle on a level surface and hold it in an upright position. NOTE: Make sure that the vehicle is positioned straight up when checking the oil level. [. . . ] is designed and administered by Yamaha Motor Corporation to provide maximum owner satisfaction. You get uninterrupted factory-backed coverage for extra peace of mind. You choose the plan that's right for you: 12 months, 24 months, 36 months or, on certain models, even 48 months beyond your warranty period. is designed and administered by the same Yamaha people who handle your warranty ­ and it shows in the comprehensive coverage benefits. [. . . ]