User manual YAMAHA XT350-1999

[. . . ] 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. The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first! EAU00005 IMPORTANT MANUAL INFORMATION Particularly important information is distinguished in this manual by the following notations: Q w The Safety Alert Symbol means ATTENTION! [. . . ] Insert the air filter element into the air filter case with the arrow mark on the top pointing inward. cC EC000082 8 Make sure that the air filter element is properly seated in the air filter case. 8 The engine should never be operated without the air filter element installed, otherwise the piston and/or cylinder may become excessively worn. Install the air filter case cover by installing the screws. Install the panel. The carburetor is an important part of the engine and requires very sophisticated adjustment. Therefore, most carburetor adjustments should be left to a Yamaha dealer, who has the necessary professional knowledge and experience. The adjustment described in the following section, however, may be serviced by the owner as part of routine maintenance. cC EC000094 6 The carburetor has been set and extensively tested at the Yamaha factory. Changing these settings without sufficient technical knowledge may result in poor performance of or damage to the engine. 6-14 PERIODIC MAINTENANCE AND MINOR REPAIR EAU00632 Adjusting the engine idling speed Engine idling speed The engine idling speed must be checked and, if necessary, adjusted as follows at the intervals specified in the periodic maintenance and lubrication chart. Start the engine and warm it up for several minutes at 1, 000­ 2, 000 r/min while occasionally revving it to 4, 000­5, 000 r/min. NOTE: The engine is warm when it quickly responds to the throttle. b a 1 NOTE: If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. 1. Check the engine idling speed and, if necessary, adjust it to specification by turning the throttle stop screw. To increase the engine idling speed, turn the screw in direction a. If any damage is found, have a Yamaha dealer replace the wheel. Do not attempt even the smallest repair to the wheel. A deformed or cracked wheel must be replaced. 8 The wheel should be balanced whenever either the tire or wheel has been changed or replaced. An unbalanced wheel can result in poor performance, adverse handling characteristics, and a shortened tire life. 8 Ride at moderate speeds after changing a tire since the tire surface must first be "broken in" for it to develop its optimal characteristics. 6-19 PERIODIC MAINTENANCE AND MINOR REPAIR 1 2a b a 1 2 7. Tighten the locknut at the clutch lever and the crankcase. c b 1. Adjusting nut Adjusting the clutch lever free play Clutch lever free play, adjusting The clutch lever free play should measure 10­15 mm as shown. Periodically check the clutch lever free play and, if necessary, adjust it as follows. To increase the clutch lever free play, turn the adjusting bolt in direction a. To decrease the clutch lever free play, turn the adjusting bolt in direction b. 3. If the specified clutch lever free play could be obtained as described above, tighten the locknut and skip the rest of the procedure, otherwise proceed as follows. [. . . ] 3-9 Shift pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Shift points (for Switzerland only) . . . . . . . . . . 5-3 Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Shock absorber assembly, adjusting . . . [. . . ]