User Manual - Page 101

For CRF450L 2020.

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Servicing Your Honda 93
Valve Clearance
7. Make sure that the timing mark (11) on the cam
sprocket aligns with the camshaft holder
mating surface (12) of the cylinder head.
8. Make sure that the dowel pins (13) are installed
into the camshaft holder (14).
9. Install the set rings (15) on the camshaft
bearing grooves (16).
Do not let the set rings fall into the crankcase.
10. Apply engine oil to the camshaft holder bolt
threads.
Install the camshaft holder (17) with the “
mark (18) facing forward.
Install the camshaft holder bolts (19) (20) and
tighten the camshaft holder bolts to the
specified torque:
11 lbf·ft (15 N·m, 1.5 kgf·m)
Tighten the camshaft holder bolts in a crisscross
pattern in two or three steps.
11. Remove the tensioner stopper (21) from the
cam chain tensioner lifter.
12. Make sure that the piston is at TDC on the
compression stroke (page 88).
Check that the timing mark (11) on the cam
sprocket aligns with the camshaft holder
mating surface (12) of the cylinder head.
If the timing mark doesn’t align with the camshaft
holder mating surface, insert the tensioner stopper
into the cam chain tensioner lifter (page 90) and
then remove the cam chain and realign the timing
mark.
(11) timing mark
(12) camshaft holder mating surface
(13) dowel pins (14) camshaft holder
(15) set rings
(16) camshaft bearing grooves
(17) camshaft holder (19) camshaft holder bolts (long)
(18) “ ” mark
(20) camshaft holder bolts (short)
(21) tensioner stopper
(11) timing mark
(12) camshaft holder mating surface
31MKE910.book 93 ージ 2019年2月14日 木曜日 午後1時41分
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