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8
Periodic maintenance and adjustment
Check the air filter element for ex-
cessive dirt or damage and re-
place it if necessary.
5. Insert the element into the V-belt
case.
6. Install the air filter element cover
by installing the screws.
EAU21386
Checking the throttle grip free
play
Measure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
EAU21403
Valve clearance
The valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel mixture, engine
noise, and eventually engine damage.
To prevent this from occurring, have
your Yamaha dealer check and adjust
the valve clearance at regular intervals.
TIP
This service must be performed when
the engine is cold.
1. Throttle grip free play
Throttle grip free play:
3.0–7.0 mm