Perio
d
ic maintenance an
d
a
d
justment
7-15
7
2. To increase the throttle grip free
play, turn the throttle grip free play
adjusting nut in direction (a). To
decrease the throttle grip free
play, turn the adjusting nut in di-
rection (b).
3. Tighten the locknut.
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.
EAUW3500
Tires
Tires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
WARNING
EWA10442
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or
d
eath from loss of
control.
The tire air pressure must
b
e
checke
d
an
d
a
d
juste
d
on col
d
tires (i.e., when the temperature
of the tires equals the am
b
ient
temperature).
The tire air pressure must
b
e
a
d
juste
d
in accor
d
ance with the
ri
d
in
g
spee
d
an
d
with the total
1. Locknut
2. Adjusting nut
UBSR81E0.book Page 15 Monday, April 3, 2023 10:39 AM
