2.6 AIR CLEANER
Unscrew the air cleaner cover screws.
Pull out the air filter from the air cleaner case.
Wash the component in non-flammable solvent and
squeeze out the solvent thoroughly. Let it dry completely.
Soak the filter in gear oil and then squeeze out the excess
oil.
Install the component into the air cleaner carefully.
2.7 SPARK PLUG
The spark plug is located at the front of the engine.
Disconnect the spark plug cap and unscrew the spark
plug. Check the spark plug electrodes for wear.
Replace the spark plug if the electrodes and insulator tip
appear unusually fouled or burned.
Discard the spark plug if there is apparent wear or if the
insulator is cracked or chipped.
The spark plug gap should be set to 0.6-0.7mm.
With the sealing washer attached, thread the spark plug
in by hand to prevent cross threading.
Tighten the spark plug to 10-12 N-m.
2.8 IDLE SPEED
Connect a tachometer to the engine. Warm up the engine
for about 10 minutes.
Tune the idle speed adjust screw on the carburetor to
obtain the idle speed. Turn clockwise for higher speed.
Turn counter-clockwise will for lower speed.
Idle speed: 1800±1 00 rpm
2.9 BRAKE SYSTEM
Inspect the front and brake lever and cable for excessive
play or other damage.
Replace or repair if necessary.
Measure the free play of the brake lever at the end of the
brake lever.
The standard free play in those two-brake handle levels
is 15-25 mm.
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