User manual YAMAHA ZUMA LL-1998

[. . . ] If you have any questions about the operation or maintenance of your scooter, please consult a Yamaha dealer. IMPORTANT INFORMATIONS EAA10500 Particularly important information is distinguished in this manual by the following notations: The Safety Alert Symbol means ATTENTION!WARNING Failure to follow WARNING instructions could result in severe injury or death to the scooter operator, a bystander or a person inspecting or repairing the scooter. A CAUTION indicates special precautions that must be taken to avoid damage to the scooter. CAUTION: NOTE: A NOTE provides key information to make procedures easier or clearer. IMPORTANT INFORMATIONS EUU00001 NOTE: · This manual should be considered a permanent part of this scooter and should remain with it even if the scooter is subsequently sold. · Yamaha continually seeks advancements in product design and quality. [. . . ] Have the spark plug torqued to the correct value as soon as possible with a torque wrench. Spark plug inspection The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate the condition of the engine. The ideal color on the white porcelain insulator around the center electrode is a medium-to-light tan color for a scooter that is being ridden normally. Do not attempt to diagnose any problems yourself. Instead, take the scooter to a Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. 7-4 PERIODIC MAINTENANCE AND MINOR REPAIR EW000066 2 d. Replace the transmission case drain plug and tighten it, always use a new gasket. Tightening torque of drain plug: 18 Nm (1. 8 m. kg, 13. 0 ft. lb) WARNING Do not let foreign material enter into the transmission case. Be sure oil does not get on tire or wheel. 1 1. Fill the transmission case with the specified quantity of oil. Transmission oil recommended: Yamalube 4 (10W30) or SAE 10W30 type SE motor oil. Improper tire pressure greatly affects tire life and handling. Check the pressure of both tires prior to each trip and adjust properly if necessary. If tire pressure is too high, shocks from the road will not be damped and will be carried to the frame and handlebars, thus adversely affecting riding comfort. In addition, scooter stability will be poor when making a turn. If tire pressure is too low, tires will be deformed greatly, thus shortening tire life. When braking, the tires could slip over the wheel rims and the tubes could be damaged. Also, when turning a corner or going around a curve, the scooter could easily turn over. @ EAH90301 EAE96501 Throttle cable adjustment EUU06400 Tires Check both front and rear tire pressures. Also check for nails, fractions of glass, or stones embedded in the tire treads. Check the run-out of each tire rim, and recondition, as ne-cessary. Ask a Yamaha dealer, if required. EUU73702 NOTE: Before adjusting the throttle cable free play, the engine idling speed should be adjusted. Adjust the throttle cable by turning the adjuster so that proper free play at the throttle grip is obtained. [. . . ] 1-5 Loading and accessories . . . . . . . . . . . . . . . . . . . . . 1-5 Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Protective apparel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Safe riding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]