User manual YAMAHA TZR250

[. . . ] 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. So, remember to put safety first! IMPORTANT MANUAL INFORMATION EAU10150 Particularly important information is distinguished in this manual by the following notations: t The Safety Alert Symbol means ATTENTION!Failure to follow WARNING instructions could result in severe injury or death to the motorcycle operator, a bystander, or a person inspecting or repairing the motorcycle. [. . . ] q 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. 6-4 PERIODIC MAINTENANCE AND MINOR REPAIR EAU18781 EAU18880 Removing and installing cowlings Cowling A 2 To install the cowling 1. Insert the tabs on the cowling into the slots as shown, and then push the cowling in until it snaps into place. Screws (x 6 Left side) The cowlings shown need to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time a cowling needs to be removed and installed. To remove the cowling 1. Push the cowling in lightly, and then pull it back as shown. ECA11200 6 1. Screws (x 7 Linkerkant) CAUTION Take care not to damage the tabs on the cowling when removing and or installing it. To remove the cowling Remove the screws, and then take the cowling off. To install the cowling Place the cowling in the original position, and then install the screws. 6-5 PERIODIC MAINTENANCE AND MINOR REPAIR EAU19620 Checking the spark plug normally). If the spark plug shows a distinctly different color, the engine could be defective. If the spark plug shows signs of electrode erosion and excessive carbon or other deposits, it should be replaced. Specified spark plug: BR9ES (NGK) Tightening torque: Spark plug: 20 Nm (2, 0 m·kgf) 1. Do not use hard water or salt water since it is harmful to the engine. q If water has been used instead of coolant, replace it with coolant as soon as possible, otherwise the engine may not be sufficiently cooled and the cooling system will not be protected against frost and corrosion. q If water has been added to the coolant, have a Yamaha dealer check the antifreeze content of the coolant as soon as possible, otherwise the effectiveness of the coolant will be reduced. EWA10380 s WARNING Never attempt to remove the radiator cap when the engine is hot. Install the panel. 6-8 PERIODIC MAINTENANCE AND MINOR REPAIR NOTE: If the engine overheats, see page 6-5 for further instructions. EAU21300 Adjusting the carburetor The carburetor is an important part of the engine and requires very sophisticated adjustment. Therefore, all carburetor adjustments should be left to a Yamaha dealer, who has the necessary professional knowledge and experience. EAU21320 The engine idling speed must be checked and, if necessary, adjusted as follows at the intervals specified in the periodic maintenance and lubrication chart. Check the engine idling speed and, if necessary, adjust it to specification by turning the throttle stop screw. To decrease the engine idling speed, turn the screw in direction (b). Engine idling speed: 1700 ~ 2000 tpm NOTE: If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. EAU21370 Adjusting the throttle cable free play a 6 (a) Throttle cable free play Adjusting the engine idling speed 1 The throttle cable free play should measure 2~5 mm (0, 08~0, 2 in) at the throttle grip. Periodically check the throttle cable free play and, if necessary, adjust it as follows. NOTE: The engine idling speed must be correctly adjusted before checking and adjusting the throttle cable free play. 1. Idle aedjusting bolt 6-9 PERIODIC MAINTENANCE AND MINOR REPAIR q a b 1. To increase the throttle cable free play, turn the adjusting nut in direction (a). [. . . ] Use a chrome polish to shine chrome, aluminum and stainlesssteel parts, including the exhaust system. (Even the thermally induced discoloring of stainless-steel exhaust systems can be removed through polishing. ) 4. To prevent corrosion, it is recommended to apply a corrosion protection spray on all metal, including chrome- and nickel-plated, surfaces. 7-2 5. Let the motorcycle dry completely before storing or covering it. EWA10930 s WARNING q Make sure that there is no oil or wax on the brakes or tires. [. . . ]