User manual YAMAHA TZR50-2003

[. . . ] OWNER'S MANUAL TZR50 5WX-F8199-E1 INTRODUCTION EAU10100 Welcome to the Yamaha world of motorcycling!As the owner of the TZR50, 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 TZR50. 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 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. Spark plug 1 NOTE: If a torque wrench is not available when installing a spark plug, a good estimate of the correct torque is 1/4~1/2 turn past finger tight. However, the spark plug should be tightened to the specified torque as soon as possible. EAUM1270 6 The spark plug is an important engine component, which should be checked periodically, preferably by a Yamaha dealer. Since heat and deposits will cause any spark plug to slowly erode, it should be removed and checked in accordance with the periodic maintenance and lubrication chart. In addition, the condition of the spark plug can reveal the condition of the engine. The porcelain insulator around the center electrode of the spark plug should be a medium-to-light tan (the ideal color when the vehicle is ridden Before installing a spark plug, the spark plug gap should be measured with a wire thickness gauge and, if necessary, adjusted to specification. Spark plug gap: 0, 6 ~ 0, 7 mm (0, 023~0, 027 in) Transmission oil 3 1 Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. 2 1. Oil filler cap 6-6 PERIODIC MAINTENANCE AND MINOR REPAIR The transmission oil level should be checked before each ride. In addition, the oil must be changed 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. Remove the oil check bolt, and then check the oil level. NOTE: The oil should be at the brim of the check hole. If the oil is below the brim of the check hole, remove the oil filler cap, add sufficient oil of the recommended type to raise it to the correct level, and then install the oil filler cap. Install the oil check bolt, and then tighten it to the specified torque. Tightening torque: Oil check bolt: 3 Nm (0, 3 m·kgf) 4. Remove the oil filler cap, add the specified amount of the recommended transmission oil, and then install and tighten the oil filler cap. Recommended transmission oil: See page 8-1. Oil change quantity: 0, 75 L (0, 65 imp. qt) ECAM1020 To change the transmission oil 1. Place an oil pan under the transmission oil case to collect the used oil. Remove the drain bolt and the oil check bolt to drain the oil. Install the drain bolt and the check bolt, and then tighten them to the specified torque. Tightening torque: Transmission oil drain bolt: 17 Nm (1, 7 m·kgf) Oil check bolt: 3 Nm (0, 3 m·kgf) CAUTION Make sure that no foreign material enters the transmission case. Start the engine and let it idle for several minutes while checking the transmission oil case for oil leakage. If oil is leaking, immediately turn the engine off and check for the cause. 6 6-7 PERIODIC MAINTENANCE AND MINOR REPAIR EAU20170 ECA10470 To check the coolant level MAX MIN 1. [. . . ] Perform the following steps to protect the cylinder, piston rings, etc. Remove the spark plug cap and spark plug. Pour a teaspoonful of engine oil into the spark plug bore. 7-3 NOTE: Consult a Yamaha dealer for advice on what products to use. EAU26150 c. Install the spark plug cap onto the spark plug, and then place the spark plug on the cylinder head so that the electrodes are grounded. [. . . ]