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PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
EAU44730
Checking the engine idling
speed
The engine idling speed must be
checked as follows and, if necessary,
adjusted by a Yamaha dealer at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
Start the engine and warm it up for sev-
eral minutes at 10002000 r/min while
occasionally revving it to 40005000
r/min.
EAU21382
Checking the throttle cable
free play
The throttle cable free play should mea-
sure 3.05.0 mm (0.120.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
EAU21401
Valve clearance
The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
Engine idling speed:
10001100 r/min
1. Throttle cable free play
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