User Manual - Page 96

For CRF450X 2020.

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88 Servicing Your Honda
Valve Clearance
13. Check that “T” mark (22) on the primary drive
gear (23) aligns with the index mark (24) on
the right crankcase cover.
14. Rotate the camshaft by rotating the crankshaft
clockwise several times.
15. Measure the intake and exhaust valve
clearances by inserting a feeler gauge (25).
Valve Clearance:
16. Install a new sealing washer (26) and tighten
the cam chain tensioner lifter cover bolt (27).
1. Install the spark plug (page 80).
2. Coat a new O-ring (1) with engine oil and
install it onto the crankshaft hole cap (2).
Apply grease to the crankshaft hole cap
threads. Install and tighten the crankshaft hole
cap to the specified torque:
11 lbf·ft (15 N·m, 1.5 kgf·m)
3. Install the right crankcase over cover
(page 79).
(22) “T” mark
(23) primary drive gear
(24) index mark
IN: 0.004 ± 0.001 in (0.11 ± 0.03 mm)
EX: 0.011 ± 0.001 in (0.28 ± 0.03 mm)
(25) feeler gauge
(26) sealing washer (new)
(27) cam chain tensioner lifter cover bolt
Crankshaft Hole Cap Installation
(1) O-ring (new)
(2) crankshaft hole cap
31MKE710.book88ページ2019年3月11日 月曜日 午前10時47
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