Honda CRF450X 2009, Owner'S Manual & Competition Handbook

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Servicing Your Honda
57
HONDA O/M CRF450X (Eu) 3RMEY620 00X3R-MEY-6200
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) clutch disc
Check the clutch plates (2) for excessive warpage
or discolouration.
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 clutch plates as a set.
(1)
Clutch Spring Inspection
(1) clutch spring
Measure the free length of each spring.
Service Limit:
43.7 mm (1.72 in)
Replace the clutch springs as a set if any one of
them is below the service limit or if the clutch
plates have been burnt/heat discoloured.
(1)
6. Remove the washer (10), needle bearing (11),
clutch lifter (12) and clutch lifter rod (13).
7. Remove the eight clutch discs and seven
clutch plates (14).
Assemble the clutch lifter, needle bearing and
washer. Turn the needle bearing with your
finger. The needle bearing should turn
smoothly and quietly. Replace the needle
bearing and washer if the needle bearing does
not turn smoothly.
(10) washer (13) clutch lifter rod
(11) needle bearing (14) clutch discs/clutch plates
(12) clutch lifter
(12)
(13)
(14)
(10)
(11)
(2)
(2) clutch plate