Clutch Disc/Plate Inspection/Installation - Honda CRF450R Owner's Manual

Clutch System
Clutch Disc/Plate Inspection
• Replace the clutch discs (1) if they show signs of
scoring or discoloration.
Measure the thickness of each clutch disc.
Service Limit: 0.112 in (2.85 mm)
Replace the clutch discs and clutch plates as a
set.
(1)
(1) clutch discs
• Check the clutch plates (2) for excessive
warpage or discoloration.
Check the plate warpage on a surface plate using
a feeler gauge.
Service Limit: 0.006 in (0.15 mm)
Replace the clutch discs and plates as a set.
(2) clutch plates
64
Servicing Your Honda
• If you feel the clutch slippage when replacing the
clutch discs and plates, replace the clutch
springs.
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 clutch plates (4)
with engine oil.
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.
(3)
(5)
(4)
(1) spring seat (4) clutch plates
(2) judder spring (5) clutch disc A
(3) clutch discs
(2)
3. Insert the clutch lifter rod (6) into the
mainshaft.
(1)
(6) clutch lifter rod
4. Apply engine oil to the needle bearing (7) and
washer (8) and install them onto the clutch
lifter (9). Then, install a new clip (10) by fitting
it into the groove in the clutch lifter.
(2)
(10)
(8)
(7)
(9)
(7) needle bearing (9) clutch lifter
(8) washer (10) clip (new)
(6)