BOMBARDIER ski-doo Tundra Scandic 2004 Series, Shop Manual

Page: 342 / 427

Section 06 ELECTRICAL
Subsection 06 (TESTING PROCEDURE)
MMR2004-134_06_06A.FM
06-06-13
RER DUAL TRIGGER COIL CDI
SYSTEM TESTING
Tundra R and Skandic LT/LT E
MPEM
1. Reverse switch, reverse indicator and trigger coil
2. Trigger coil
3. Generator output and cut-off switches
IGNITION SYSTEM TESTING
SEQUENCE
In case of ignition problems, check the following
in the prescribed order until the problem can be
solved.
1. Sparking/spark plug condition.
2. Electrical connectors.
3. Ignition switch, tether cord cap and engine cut-
out switch.
4. Ignition coil output.
5. Trigger coil output.
NOTE: Refer to DUCATI CDI SYSTEM TESTING and
appropriate model IGNITION SYSTEM TESTING TA-
BLE at the end of this chapter for complete detailed
testing procedure.
LIGHTING SYSTEM TESTING
SEQUENCE
1. Electrical connectors.
2. Magneto output (lighting generator coil).
NOTE: Refer to DUCATI CDI SYSTEM TESTING and
appropriate model LIGHTING SYSTEM TESTING TA-
BLE at the end of this chapter for complete detailed
testing procedure.
Testing Conditions
Voltage measurements are always taken upon
starting the vehicle. Readings taken when the en-
gine is running will be higher than indicated range.
Part temperature must be approximately 21°C
(70°F) (room temperature), otherwise readings
could be distorted.
Analysis of Readings
Voltage Readings
When testing the different magneto components,
it is important to take into consideration that read-
ings vary according to the force applied onto the
manual starter. It is therefore important to employ
enough force upon each trial.
Doing 3 trials, the readings must each time be
within or above the range indicated in the corre-
sponding table. If the reading is too low, the part
is considered to be defective and it must be re-
placed.
Resistance Readings
Place multimeter selector switch to
Ω
in order to
measure resistance. Readings must be within the
indicated range. Otherwise, the part is considered
to be defective and must be replaced.
CAUTION: When taking measurements, it is
useless to try to start the vehicle since readings
would then be distorted.
Intermittent Ignition Problems
It is difficult to make a diagnostic in the case of
intermittent ignition problems. Thus, problems oc-
curring only when the engine operating tempera-
ture is normal must be checked in similar condi-
tions.
In most cases when problems are caused by tem-
perature or vibrations, these can only be solved by
replacing parts. Most problems cannot be detect-
ed when the engine is stopped.
Multiple Problems
As a matter of fact, more than one component can
be defective. As a result, if the problem remains
although a part was replaced, start over the whole
verification from the beginning in order to identify
the other defective component.
A05E0KA
1
2
3