User manual YAMAHA WR250X-2008

[. . . ] OWNER'S MANUAL WR250X 32D-28199-E1 INTRODUCTION EAU10100 Welcome to the Yamaha world of motorcycling!As the owner of the WR250X, you are benefiting from Yamaha's vast experience and newest technology regarding the design and manufacture of high-quality products, which have earned Yamaha a reputation for dependability. Please take the time to read this manual thoroughly, so as to enjoy all advantages of your WR250X. 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. [. . . ] If the spark plug shows a distinctly different color, the engine could be operating improperly. Do not attempt to diagnose such problems yourself. Instead, have a Yamaha dealer check the vehicle. If the spark plug shows signs of electrode erosion and excessive carbon or other deposits, it should be replaced. Specified spark plug: NGK/CR9EK 2. Install the seat. 6-8 Before installing a spark plug, the spark PERIODIC MAINTENANCE AND MINOR REPAIR plug gap should be measured with a wire thickness gauge and, if necessary, adjusted to specification. 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. EAU45140 Engine oil and oil filter element 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. A slight tilt to the side can result in a false reading. Start the engine, warm it up for several minutes, and then turn it off. Wait a few minutes until the oil settles, and then check the oil level through the check window located at the bottom-right side of the crankcase. 1 1 2 3 4 5 6 7 8 9 1. Spark plug gap Spark plug gap: 0. 6­0. 7 mm (0. 024­0. 028 in) Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. Tightening torque: Spark plug: 13 Nm (1. 3 m·kgf, 9. 4 ft·lbf) NOTE: If a torque wrench is not available when installing a spark plug, a good estimate 6-9 PERIODIC MAINTENANCE AND MINOR REPAIR NOTE: The engine oil should be between the minimum and maximum level marks. Start the engine, warm it up for several minutes, and then turn it off. Place an oil pan under the engine to collect the used oil. Remove the engine oil filler cap and drain bolt to drain the oil from the crankcase. 1 2 1 2 3 1. Engine oil drain bolt NOTE: Skip steps 5­7 if the oil filter element is not being replaced. Remove the oil filter element cover by removing the bolts. 4. If the engine oil is below the minimum level mark, add sufficient oil of the recommended type to raise it to the correct level. To change the engine oil (with or without oil filter element replacement) 1. Place the vehicle on a level surface. NOTE: Check the washer for damage and replace it if necessary. 6-10 PERIODIC MAINTENANCE AND MINOR REPAIR install and tighten the oil filler cap. 1 1 2 1. [. . . ] 7-1 Catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Clutch lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Clutch lever free play, adjusting. . . . . . . . . . . . . . 6-21 Coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]