Derbi Dirtboy 10, Руководство по ремонту

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37
- Fit the pulley on the camshaft.
- Fit the belleville washer so that its outer rim is in contact
with the pulley.
- Turn in the screw until it makes contact, without tightening
it fully.
- Slightly press the tensioner shoe to verify the valve gear
timing.
- Using the specific tool, lock the camshaft ring gear and
then tighten the screw.
- Carry out the valve clearance adjustment procedure as
described in the «lnspecting/adjusting the valve clearance»
paragraph.
- Replace the 0-ring on the tappet cover.
- Fit the tappet cover and fasten it using the four fixing screws
shown in the figure.
Specific tooling
020565Y Compass flywheel stop spanner
Locking torques (N*m)
Camshaft pulley screw:
12 - 14 Nm Head cover screw: 8-10 Nm
- Set the tensioner slider in its home position.
- Install the tensioner on the cylinder using a new gasket;
hence tighten the screws with the prescribed torque.
- Insert the spring with the central screw and the O-ring,
hence tighten the cap with the prescribed torque.
- Fit the spark plug.
C
HARACTERISTIC
Recommended spark plug
Champion RG 4 HC
Electric characteristic
Electrode gap
mm 0,7 ÷ 0,8
Locking torques (N*m)
Timing chain tensioner screw:
8 ÷ 10 Nm
Timing chain tensioner central screw:
5 ÷ 6 Nm
Spark plug:
10 ÷ 15 Nm
ENGINE EE
- CYLINDER ASSY. AND TIMING SYSTEM
ENGINE
- CYLINDER ASSY. AND TIMING SYSTEM