MAINTENANCE
Loosen the 3 screws on the pulley cover by a
3 mm
Allan screwdriver and
remove the pulley cover.
Before the valve clearance adjustment, make sure that piston No. 1 is at the
top dead centre (TDC) of the compression stroke. Rotate the crankshaft by
a
19 mm
open-end spanner clockwise.
Check the valve clearance by a feeler gauge:
IN 0.20 mm
(cool engine)
EX 0.20 mm
(cool engine)
If deviations occur, adjust the valve clearance.
Valve clearance adjustment
Loosen the lock nut by a
10 mm
ring spanner and turn the adjusting screw
for adjustment.
Tighten the locknut by a torque wrench with a
10 mm
socket insert and
check the valve clearance again.
Torque:
11 Nm
With No. 1 piston at TDC of the compression stroke, check and adjust the
valve clearances for the cylinders shown in the chart to the right.
Rotate the crankshaft one complete turn (360°) clockwise to check and ad-
just the remaining valves.
Replace the old valve cover gasket with the new gasket and reinstall the
valve cover with the 2 bolts.
Torque:
10.5 ± 0.05 Nm
Fasten the pulley cover with the 3 screws.
STEP 2 – USED SPARK PLUGS
Use a feeler gauge to check the electrode gap before inserting the new
spark plugs and adjust if necessary.
Standard gap:
0.4 – 0.5 mm
Insert the new spark plugs loosely to allow the temperature to balance out
between the cylinder head and spark plugs.
Fig. 4.07
Fig. 4.08
Fig. 4.09
Table 1
Piston position cylinder
1
2
3
No. 1 piston at TDC, of
compression stroke
IN
●
●
EX
●
●
Rotate crankshaft 360º
clockwise
IN
●
EX
●
Fig. 4.10
Fig. 4.11
10
