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9. Vehicles with positive earth.
If the vehicle has a positive earth electrical
system is possible that the Xenon lamp does not
light up.
In this case reverse the inductive clamp so
that the arrow points in the direction of the
distributor.
FIGURE 1.
CHECKING THE "CENTRIFUGAL AD-
VANCE" AND "VACUUM ADVANCE"
1. Follows the steps 1 to 4 of general procedures
except increase the engine speed to 2000 rpm.
2. Trigger the timing light and rotate the knob
clockwise slowly and stop until the timing mark
moves to "T.D.C. (Top dead center)" or "0"
position.
3. Read off the advance angle from the LED
display.
4. Compare the reading with manufacturer's
specifications.
DWELL ANGLE MEASUREMENT
Dwell Angle Measurement is indispensible for
exact distributor adjustment. For only when the
Dwell angle is correctly adjusted can a powerful
magnetic field build up within the coil, thus
providing a high energy ignition spark at all
engine speeds.
1. Press the tact switch to light the Dwell indictor.
(See figure 2)
2. Connect the black clip to the negative battery
terminal (-) and the red clip to the positive
battery terminal (+).
3. Connect the green clip to terminal 1 of the
ignition coil (1, D, RUP, -).
FIGURE 2.
4. Start the engine and let it run at idling speed.
5. Read off the Dwell Angle in % from the
LED display and compare it with the vehicle
manufacturer's recommendations.
Please refer to the conversion table of Dwell
Angle %:<)∞on page 7.
Should you find any deviations, make the
appropriate adjustment.
If the Dwell angle is too small the point gap is
too large, and if the dwell angle is excessively
large the point gap is too small.
E N G L I S H
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