Bearings A - Yamaha SR250G Service Manual

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REAR WHEEL
Hemoving the Rear Wheel
1. First remove the adjust nut and return
spring from the brexe rad; then, remov"
the brake rod and pin from the osm
lever while pulling them apart
2. Remove the cotte- pin from the rear
axie and loosen the axle nut.
3. The rear whvel can be removed by net
necessarily cutting the chain If you cut
the drive chain, uso the ohain cutter
(special tool). See page 3-2
Checking Brake Shoe Weer
See front wheel section, "Checking Brake
'Shoe Wear'
Rear brake shoo ciamotor
122 mm (4.80 in}
Replacement limit:
118 mm (4.66 in) min.
Brake Drum
See 'ront wheel section,
"Brake Drum".
Replacing Wheel Bearings
See front wheel section. "Replacing Wheel
Bearings".
Installing Hear Wheel
The rear wheal can be reassembled by re-
vursing the disasswmbly procedure. Now the
following points
1. When instal/ing the chain. make certain
the closed end of the master link clip 's
facing direction of rotation
2. Check for proper engagement cf the
boss on the swing arm with the locating
slot on the brake snoe plate
3. Make sure tho rear wheel axle is insert
ed on the left-hand side and that the
chain pullers are installed with the
punched side outward.
4. Make sure the rear wheel axie nut is
properly torqued.
Tightening torque'
10.6 m-ky (76.7
52
RIMS AND SPOKES
(FRONT AND REAR WHEELS)
Checking for Loose Spokes
Loose spokes can be checked by bracing the
motoreyels off the ground so that the wheel
can spin freely:
Slowly rotate the wheel and at the same
time lot the metal shaft of a fairly heavy
screwdriver Lounce olf each spoke, if all the
spokes are tightened anproximately tho
samo. then the sound given off ky the
screwdriver 5 tting the spokes should sound
the same If one spake makes a dull flat
sound, then check it for looseness, (See
chapter 2, "Front brake and whee!")
Checking Rim "Run-Our'
See chapter 2, "Front brake and wheel
TIRES AND TUBES
Removal
1, Remove the valve cap, valve core, end
valve stem loc nut
2.
Wher all air is out of tube. sepsrete tire
bead from rim (both sides} by stepping
on tire with your foot.
3.
Use
vo
tire
removal
irons
(with
sounded edges) to work the tire bead
'over the edge of the rim, starting 180°
opposite the tube sivin, Take care to
avoid pinching the tube as you do this.
4 After you have workad one side of the
tire completely off the rim. then you can
slip the tube out. Be very careful not to
damage the stem while oushing it back
out of the rim hole.
re removal.
©
work the other bead

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