PERIODIC MAINTENANCE AND MINOR REPAIR

2.Check the spark plug for electrode erosion and excessive carbon or other deposits, and replace it if necessary.

Specified spark plug:

NGK/CR6HSA

To install the spark plug

1.Measure the spark plug gap with a wire thickness gauge and, if nec- essary, adjust the gap to specifica- tion.

2.Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads.

3.Install the spark plug with the spark plug wrench, and then tight- en it to the specified torque.

Tightening torque:

Spark plug:

12.5 Nm (1.25 m·kgf, 9.0 ft·lbf)

NOTE:

If a torque wrench is not available when installing a spark plug, a good estimate

EAU39841

Engine oil

The engine oil level should be checked before each ride. In addition, the oil must be changed at the intervals spec- ified in the periodic maintenance and lubrication chart.

To check the engine oil level

1.Place the motorcycle on a level surface and hold it in an upright po- sition.

NOTE:

Make sure that the motorcycle is posi- tioned straight up when checking the oil

of the correct torque is 1/4–1/2 turn past finger tight. However, the spark plug should be tightened to the speci-

level. A slight tilt to the side can result in a false reading.

6

fied torque as soon as possible.

4. Install the spark plug cap.

2.

Start the engine, warm it up for

 

several minutes, and then turn it

 

off.

3.

Wait a few minutes until the oil set-

 

tles, remove the oil filler cap, wipe

1.Spark plug gap

Spark plug gap:

0.6–0.7 mm (0.024–0.028 in)

the dipstick clean, insert it back

into the oil filler hole (without

screwing it in), and then remove it

again to check the oil level.

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Yamaha TT-R110EX owner manual Engine oil, To install the spark plug, To check the engine oil level