Honda CRF150R 2020 Owner's Manual & Competition Handbook page 61

Camshaft Holder Assembly Removal
1. Record the intake valve clearance and exhaust
valve clearance.
Make sure the piston is at TDC (Top Dead
Center) on the compression stroke (page 53).
2. Loosen the connecting tube clamp screw (1)
and insulator band screw (2) and rotate the
carburetor to access for the cam chain
tensioner lifter.
(2)
(1)
(1) connecting tube clamp screw
(2) insulator band screw
3. Remove the cam chain tensioner lifter cover
bolt (3) and sealing washer (4).
(4)
(3) cam chain tensioner lifter cover bolt
(4) sealing washer
Use the tensioner stopper tool.
• Tensioner stopper
4. Turn the tensioner shaft clockwise with the
tensioner stopper (5) until it stops, in order to
retract the tensioner fully.
Then insert the tensioner stopper fully to hold
the stopper in the fully retracted position.
(5)
(5) tensioner stopper
5. Remove the bolt (6), stopper plate (7), return
spring (8) and decompressor weight (9).
NOTICE
Do not let the bolt, stopper plate, return spring
and decompressor weight fall into the crankcase.
(8)
(3)
(6) bolt
(7) stopper plate
070MG-0010100
07AMG-001A100
(USA only)
(5)
(6)
(7)
(9)
(8) return spring
(9) decompressor weight
Valve Clearance
6. Remove the cam sprocket bolts (10) and cam
sprocket (11), then attach a piece of wire to the
cam chain (12) to prevent it from falling into
the crankcase.
NOTICE
Do not let the bolts, sprocket and cam chain fall
into the crankcase.
(12)
(10) cam sprocket bolts (12) cam chain
(11) cam sprocket
Servicing Your Honda
(10)
(11)
(cont'd)
55