Yamaha Star 250 Xv250y C Owners Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
7-16
7
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.
EAU32521
Tires To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified tires.
Tire air pressure
The...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-17
7Tire inspection
Always check the tires before operating
the motorcycle. If a tire tread shows
crosswise lines (minimum tread depth),
if the tire has a nail or glass fragments
in it, or if the sidewall is cracked, con-
tact a Yamaha dealer immediately and
have the tire replaced.
WARNING
EWA10560


It is dangerous to ride with a
worn-out tire. When a tire tread
begins to show crosswise lines,
have a Yamaha dealer replace
the tire immediately.


The replacement of...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-18
7
EAU21940
Spoke wheels To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified wheels.

The wheel rims should be checked
for cracks, bends or warpage, and
the spokes for looseness or dam-
age before each ride. If any dam-
age is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.


The wheel...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-19
75. To increase the clutch lever free
play, turn the adjusting nut in direc-
tion (a). To decrease the clutch le-
ver free play, turn the adjusting nut
in direction (b).
6. Tighten the locknut at the clutch le-
ver and the crankcase.
EAU22093
Adjusting the brake lever free 
play The brake lever free play should mea-
sure 2.0–5.0 mm (0.08–0.20 in) as
shown. Periodically check the brake le-
ver free play and, if necessary, adjust it
as follows.
1. Loosen the locknut...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-20
7
EAU22201
Adjusting the brake pedal po-
sition and free play 
WARNING
EWA10670
It is advisable to have a Yamahadealer make these adjustments.
Brake pedal position
The top of the brake pedal should be
positioned approximately 60.0 mm
(2.36 in) above the top of the footrest as
shown. Periodically check the brake
pedal position and, if necessary, adjust
it as follows.1. Loosen the locknut at the brake
pedal.
2. To raise the brake pedal, turn the
adjusting bolt in...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-21
7


If proper adjustment cannot be
obtained as described, have a
Yamaha dealer make this ad-
justment.


After adjusting the brake pedal
free play, check the operation ofthe brake light.
EAU22271
Adjusting the rear brake light 
switch The rear brake light switch, which is ac-
tivated by the brake pedal, is properly
adjusted when the brake light comes
on just before braking takes effect. If
necessary, adjust the brake light switch
as follows.
Turn the rear brake...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-22
7 indicator groove has almost disap-
peared, have a Yamaha dealer replace
the brake pads as a set.
EAU22540
Rear brake shoes
The rear brake is provided with a wear
indicator, which allows you to check the
brake shoe wear without having to dis-
assemble the brake. To check the
brake shoe wear, check the position of
the wear indicator while applying the
brake. If a brake shoe has worn to the
point that the wear indicator reaches
the wear limit line, have a Yamaha...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-23
7
EAU22721
Changing the brake fluid Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenance
and lubrication chart. In addition, have
the oil seals of the brake master cylin-
der and caliper as well as the brake
hose replaced at the intervals listed be-
low or whenever they are damaged or
leaking.

Oil seals: Replace every two
years.


Brake hose: Replace every four
years.
EAU22760
Drive chain slack The drive...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-24
7 2. Remove the cotter pin from the
axle nut, and then loosen the axle
nut.
3. Loosen the chain puller locknut at
each end of the swingarm.
4. To tighten the drive chain, turn the
drive chain slack adjusting nut at
each end of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting nut at each end
of the swingarm in direction (b),
and then push the rear wheel for-
ward. NOTICE: Improper drive
chain slack will overload the en-
gine as well as...

PERIODIC MAINTENANCE AND ADJUSTMENT
7-25
7
EAU23013
Cleaning and lubricating the 
drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10581
The drive chain must be lubricated
after washing the motorcycle andriding in the rain.
1. Remove all dirt and mud from the
drive chain with a brush or...