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! [. . . ] · Check bearings for smooth operation. · 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. · Check bearing assemblies for looseness. · Moderately repack with lithiumsoap-based grease every 16000 mi (25000 km) or 24 months. · Check all chassis fitting and fasteners. · Apply lithium-soap-based grease (all-purpose grease) lightly. · Apply lithium-soap-based grease (all-purpose grease) lightly. · Apply lithium-soap-based grease (all-purpose grease) lightly. · Check operation and replace if necessary. NOTE: If any spark plug shows a distinctly different color, the engine could be defective. Do not attempt to diagnose such problems yourself. Instead, have a Yamaha dealer check the vehicle. Check each spark plug for electrode erosion and excessive carbon or other deposits, and replace it if necessary. 1. 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. [. . . ] 6-14 Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Catalytic converter (for California only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Clutch lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Clutch lever free play, adjusting . . . . . . . . . . . [. . . ]