Clutch Disc/Plate Inspection; Clutch Disc/Plate Installation - Honda CRF450R Manual Del Propietario Y Guía De Competiciones

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: 2.85 mm (0.112 in)
Replace the clutch discs and clutch plates as a set.
(1)
(1) clutch disc
Check the clutch plates (2) for excessive warpage
or discoloration.
Check the plate warpage on a surface plate using a
feeler gauge.
Service Limit: 0.15 mm (0.006 in)
Replace the clutch discs and plates as a set.
(2) clutch plate
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 centre 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)
(4)
(1) spring seat
(2) judder spring
(3) clutch discs
(2)
3. Insert the clutch lifter rod (6) into the
4. Apply engine oil to the needle bearing (7) and
5. Install the clutch lifter onto the rod.
(2)
(6) clutch lifter rod
(7) needle bearing
6. Install the clutch pressure plate (10).
(1)
7. Install the four clutch springs and bolts (11).
8. Tighten the bolts in a crisscross pattern in two
(5)
(4) clutch plates
(5) clutch disc A
(10) clutch pressure plate
(11) clutch springs and bolts
Clutch System
mainshaft.
washer (8) and install them onto the clutch
lifter (9).
(9) (6) (8)
(8) washer
(9) clutch lifter
or three steps to the specified torque:
12 N·m (1.2 kgf·m, 9 lbf·ft)
(11)
Servicing Your Honda
(7)
(10)
(cont'd)
69