60H5E11
CHK
ADJ
Periodic checks and adjustments
Ignition timing at idle speed :
ATDC 7°
Ignition timing at wide open throttle :
BTDC 18°
Standard ignition timing adjusting
screw length
F
:
16mm(0.63in) (reference)
Spark plug:
25 N • m (2.5 kgf • m, 18 ft • lb)
T
R
.
.
Engine idle speed: 675-725 r/min
Timing light : 90890-03141
3-11
16. Adjust the length of standard ignition tim-
ing adjusting screw
3
so that the timing
mark
D
on the flywheel aligns with the mark
C
on the base assembly.
60H30270
17. Make sure that the carburetor pick-up tim-
ing is correct.
18. Install the spark plugs.
19. Install the intake silencer and flywheel
cover.
20. Connect the throttle cable.
21. Start the engine, and check the engine idle
speed.
22. Check the ignition timing by means of the
timing light.
60H30280