Honda CRF250X Owner's Manual & Competition Handbook page 64

250X_030-059.qxd 08.7.3 10:10 ページ58
Clutch System
Clutch Disc/Plate Inspection
Replace the clutch discs (1) if they show signs of
scoring or discolouration.
Measure the thickness of each clutch disc.
Service Limit: 2.85 mm (0.112 in)
Replace the clutch discs and clutch plates as a set.
(1)
(1) clutch disc
Check the clutch plate (2) for excessive warpage
or discolouration.
Check the plate warpage on a surface plate using
a feeler gauge.
Measure the thickness of the clutch plates.
Service Limit: 0.10 mm (0.004 in)
Replace the clutch discs and plates as a set.
(2) clutch plate
58
Servicing Your Honda
Clutch Spring Inspection
(1) clutch spring
Measure the free length of each spring.
Service Limit: 38.0 mm (1.50 in)
If one or more springs are below the service
limit, replace the springs as a set.
Replace the clutch springs as a set if any one of
them is beyond the service limit or if the clutch
plates have been burnt/heat discoloured.
(2)
Clutch Disc/Plate Installation
1. Install the spring seat (1) and judder spring (2)
onto the clutch centre as shown.
Coat the clutch discs (3) and plates (4) with
clean engine oil.
(1)
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)
(3)
(4)
(1) spring seat (4) clutch plates
(2) judder spring (5) clutch disc A
(3) clutch discs
3. Insert the clutch lifter rod into the mainshaft.
4. Install the clutch lifter assembly (6) onto the
rod.
(6)
(6) clutch lifter assembly
(2)
(5)