Specifications

Service Training
Section 4.9
Page 42
12.05
4.9.4 INSPECTIONS AND ADJUSTMENTS
4.9.4.1 IGNITION SYSTEM
CHECKING THE FIRING POINT
NOTE: The firing point can only be checked and ad-
justed dynamically using a strobe light.
- Let the engine warm up.
- Stop engine and switch off ignition.
- Connect strobe lamp according to manufacturer’s instruc-
tions.
- Start engine.
- Let engine run at idling speed of 800 rpm.
- Shine the strobe light at the firing point mark 18 ° before
TDC on the flywheel (2) (vertically from above).
NOTE: With the correct setting, the marking on the
flywheel must be flush with notch (1) on the
housing.
ADJUSTING THE FIRING POINT
- Loosen clamping screw (3) on ignition distributor (4) to the
point where it can just be turned manually.
- Shine the strobe light on the markings.
- Twist the ignition distributor so that the 18 ° marking on the
flywheel is flush with the notch on the housing.
Turning clockwise: Earlier ignition
Turning counter-clockwise: Later ignition
- Refasten the clamping screw after the adjustment and
check the setting again.
NOTE: There are two markings of different lengths on
the flywheel. In the direction of rotation of the
engine, the short marking appears first as the
firing point, the second, longer marking as TDC.