Perio
d
ic maintenance an
d
a
d
justment
6-15
6
EAU34302
A
d
justin
g
the en
g
ine i
d
lin
g
spee
d
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
The engine should be warm before
making this adjustment.
Check the engine idling speed and, if
necessary, adjust it to specification by
turning the idle adjusting screw. To in-
crease the engine idling speed, turn the
screw in direction (a). To decrease the
engine idling speed, turn the screw in
direction (b).
TIP
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
EAU48434
A
d
justin
g
the throttle
g
rip free
play
Measure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, adjust it as fol-
lows.
TIP
The engine idling speed must be cor-
rectly adjusted before checking and
adjusting the throttle grip free play.
1. Slide the rubber cover back.
2. Loosen the locknut.
3. To increase the throttle grip free
play, turn the adjusting nut in di-
rection (a). To decrease the throt-
tle grip free play, turn the adjusting
nut in direction (b).
1. Idle adjusting screw
En
g
ine i
d
lin
g
spee
d
:
1250–1550 r/min
ZAUE3388
(a)
(b)
1
1. Throttle grip free play
Throttle
g
rip free play:
3.0–5.0 mm (0.12–0.20 in)
ZAUM1595
1
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