Maintenance - Yamaha YTZ250S 1986 Service Manual

NOTE: ______________________ _
When removing phillips spring screws, loosen
each screw in several stages working in a
crisscross pattern to avoid any unnecessary
warpage. Note the condition of each piece as
it is removed and its location within the
assembly.
3. Bend lock washer tab down. Using the
clutch holding tool, remove the clutch
securing nut and lock washer. Remove
the clutch boss and driven gear (clutch
housing).
1. Clutch holding tool
4. Remove the primary drive gear.
5. Remove the push rod ball and push rod.
6. Pull out the clutch push lever assembly.
7. Remove kick starter idle gear.
3-22
Maintenance
1. Measure the friction plates at three or four
points. If their minimum thickness ex-
ceeds tolerance, replace.
~
New
Wear
limit
Friction plate
3.0mm 2.7mm
thickness
1O.12in) (O .106in)
2. Place each clutch plate on a surface plate
and check for warpage with a feeler
gauge; if warpage exceeds 0.05 mm
(0.002 in), replace the clutch plate.
Clutch plate warpage allowance:
0.05 mm (0.002 in) Maximum