User manual YAMAHA YZ250F-2003

[. . . ] Please take the time to read this manual thoroughly, so as to enjoy all advantages of your YZF-R1. The owner's manual does not only instruct you in how to operate, inspect and maintain your motorcycle, but also in how to safeguard yourself and others from trouble and injury. In addition, the many tips given in this manual will help keep your motorcycle in the best possible condition. If you have any further questions, do not hesitate to contact your Yamaha dealer. [. . . ] NOTE: If you do not have the tools or experience required for a particular job, have a Yamaha dealer perform it for you. Do not touch either muffler bracket, located under the muffler bracket covers, until the exhaust system has cooled. Muffler bracket 6-1 PERIODIC MAINTENANCE AND MINOR REPAIR EAU17705 Periodic maintenance and lubrication chart NOTE: G The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead. G From 50000 km, repeat the maintenance intervals starting from 10000 km. G Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills. ODOMETER READING (× 1000 km) NO. 1 * Fuel line 2 * Spark plugs ITEM CHECK OR MAINTENANCE JOB 1 · Check fuel hoses for cracks or damage. 3 * Valves 4 5 Air filter element Clutch · Check valve clearance. · Check operation, fluid level and vehicle for fluid leakage. · Check operation, fluid level and vehicle for fluid leakage. 6-2 10 Every 40000 km 20 30 40 ANNUAL CHECK 6 6 * Front brake Whenever worn to the limit 7 * Rear brake Whenever worn to the limit 8 * Brake hoses 9 * Wheels Every 4 years PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING (× 1000 km) NO. ITEM · · · · CHECK OR MAINTENANCE JOB 1 Check tread depth and for damage. 10 20 30 40 ANNUAL CHECK 10 * Tires 11 * Wheel bearings 12 * Swingarm · Check bearing for looseness or damage. · The air filter element needs to be replaced more frequently when riding in unusually wet or dusty areas. G Hydraulic brake service · Regularly check and, if necessary, correct the brake fluid level. · Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid. · Replace the brake hoses every four years and if cracked or damaged. 6 6-5 PERIODIC MAINTENANCE AND MINOR REPAIR EAU18771 Removing and installing panels The panels shown need to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time a panel needs to be removed and installed. 1. Panel B To remove one of the panels Remove the screw and the quick fastener, and then pull the panel off as shown. To install the panel Place the panel in the original position, and then install the screw and the quick fastener. 6-6 PERIODIC MAINTENANCE AND MINOR REPAIR EAU33990 EAU19651 Panels B and D To remove one of the panels 1. Remove the screw, and then remove the panel as shown. Checking the spark plugs The spark plugs are important engine components, which should be checked periodically, preferably by a Yamaha dealer. Since heat and deposits will cause any spark plug to slowly erode, they should be removed and checked in accordance with the periodic maintenance and lubrication chart. In addition, the condition of the spark plugs can reveal the condition of the engine. The porcelain insulator around the center electrode of each spark plug should be a medium-to-light tan (the ideal color when the vehicle is ridden normally), and all spark plugs installed in the engine should have the same color. If any spark plug shows a distinctly different color, the engine could be defective. [. . . ] 3-4 I Identification numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 Ignition circuit cut-off system . . . . . . . . . . . . . . . . . 3-26 Immobilizer system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Immobilizer system indicator light . . . . . . . . . . . 3-7 Indicator and warning lights . . . . . . . . . . . . . . . . . . . . 3-3 D Dimmer switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Drive chain, lubricating . . . . . . . . . . . . . . . . . . . . . . . . . 6-24 Drive chain slack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23 K Key identification number. . . . . . . . . . . . . . . . . . . . . . . . 9-1 L License plate light bulb, replacing . . . . . . . . . 6-36 Luggage strap holders . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 E Engine break-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]