Honda CRF250R Owner's Manual & Competition Handbook page 58

250R_024-054.qxd 2008.07.17 15:40 ページ52
Clutch System
Clutch Spring Inspection
(1) clutch spring
Measure the free length of each spring.
Service Limit: 37.7 mm (1.48 in)
If one or more springs are beyond the service
limit, replace the springs as a set.
Replace the clutch discs, clutch plates and clutch
springs as a set if the clutch plates have been
burnt/heat discolour.
Clutch Disc/Plate Installation
1. Install the spring seat (1) and judder spring (2)
onto the clutch center as shown.
Coat the clutch discs (3) and plates (4) with
clean engine oil.
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Servicing Your Honda
2 Install the clutch disc A (larger I.D. disc) (5)
onto the clutch outer.
Stack the seven clutch plates and seven clutch
discs alternately.
(1)
(1)
(3)
(1) spring seat (4) clutch plates
(2) judder spring (5) clutch disc A
(3) clutch discs
3. Apply grease to the clutch lifter rod (6) ends.
4. Insert the clutch lifter rod into the mainshaft.
5. Apply engine oil to the needle bearing of the
clutch lifter.
6. Install the clutch lifter (7) onto the clutch
lifter rod.
(7)
(6) clutch lifter rod (7) clutch lifter
7. Install the clutch pressure plate (8).
8. Install the five clutch springs and clutch
spring bolts (9).
9. Tighten the bolts in a crisscross pattern in two
or three steps, to the specified torque:
12 N·m (1.2 kgf·m, 9 lbf·ft)
(8)
(5) (2)
(4)
(9)
(8) clutch pressure plate
(9) clutch spring bolts/clutch springs
10.Apply oil to a new O-ring (10) and install in
the groove of the clutch cover (11).
11.Install the cover by tightening the five cover
bolts to the specified torque:
10 N·m (1.0 kgf·m, 7 lbf·ft)
(6)
(10)
(10) O-ring
(11)
(11) clutch cover