Yamaha TT-R50E Owner's Manual

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Contents

Periodic maintenance and adjustment7-77To install the spark plug1. Clean the surface of the sparkplug gasket and its mating surfa-ce, and then wipe off any grimefrom the spark plug threads.2. Install the spark plug with thespark plug wrench, and then tight-en it to the specified torque.TIPIf a torque wrench is not availablewhen installing a spark plug, a goodestimate of the correct torque is 1/4–1/2 turn past finger tight. However, thespark plug should be tightened to thespecified torque as soon as possible.3. Install the spark plug cap.EAU49934Engine oilThe engine oil level should be checkedbefore each ride. In addition, the oilmust be changed at the intervals spec-ified in the periodic maintenance andlubrication chart.To check the engine oil level1. Place the motorcycle on a levelsurface and hold it in an uprightposition. A slight tilt to the side canresult in a false reading.2. Start the engine, warm it up forseveral minutes, and then turn itoff.3. Wait a few minutes until the oil set-tles, remove the engine oil fillercap, wipe the engine oil dipstickclean, insert it back into the oil fillerhole (without screwing it in), andthen remove it again to check theoil level.TIPThe engine oil should be between theminimum and maximum level marks.Tightening torque:Spark plug:13 Nm (1.3 m·kgf, 9.4 ft·lbf)1. Engine oil filler cap2. Engine oil dipstick3. Maximum level mark4. Minimum level mark