Yamaha SR250G Service Manual page 40

10
Holl tre guide bars ecress a surface
plate, Hany ba ishent, replace,
Chuck the shift can arooves tor signs of
weer or damage. If any profile has ex
cessive weer arc/o; any damage, "e-
place cam.
Check the cam fcllowers on each shift
fork wear. The follower should fit snugly
inte its seat in the shift fork. but nor
over-right.
Check the encs that ride in the grooves:
in the shift cam. If tney are worn or
damaged, replaws
Check shift cam cewel pins and side
plate for loosenzss. damage. or we:
Rowuir as required.
Check the transmission shafts using @
centering device and dial geuga, If sry
shaft is b e n t , replece.
Carefully inspect each gear. Look for
signs of obvious luat damage (blue cis-
coloration). Check the 73eth for signs of
pitting, galling, cr other extreme weer
Replace as required
Check to see that each gear moves:
'realy on its shaft.
Checs to see that all washers and clip
are properly installed and undamaged.
Replace bent o- loose clips anc bent
washers.
Check to see that esch gear properly
engages its counterpart on the shatt
Check the mating dogs for rounded
adges. cracks. or missing portions. Re-
plece as required.
Bearings and Oil Seals
1
a
w
Insgection
After cleaning and lubricstion bearings.
rotate inner race with a finger. If rough
spots are noticed, replace the bearing.
Check oil seal lips for damage and wear.
Replace as required.
Removal
Pry oll see|(s} out af piace using a slot
haad scrawdriver,
Always replace all
averhautling engine.
oil seals when
NOTE:
Place a piece of wood under the slot head
serewariver to provent damage to case
b. Brive cut bearing(s) with socket and
NOTE
Bearing(s) are most easily removed cr inst
hammer
lod if the cases aie first heated t0 approx
mately 95° ~ 125°C Bring the case up to
proper temporature slowly. Use an over
3.
1 beer
Installarion
Insrall bearings) and oil seals) with
their manufacture's marks or numbers
facing ourward. (in other words, the
stamped 'stlvrs must be on the sid
posed to view! When installing bear
ing{s) er oil sealis). apply a light coat-
ing of light-weight Iishium base grease
to balls and sea! lip(s).
+ Disco!