Ignition System; Accessories; General Testing/ Troubleshooting Information - BOMBARDIER DS 650 Shop Manual

Section 05 ELECTRICAL
Subsection 02 (OVERVIEW)

IGNITION SYSTEM

An CDI (Capacitor Discharge Ignition) system is
utilized. The ignition system is made up of the fol-
lowing components:
TYPICAL
1. Battery
2. Ignition switch
3. Start button
4. Electronic module
5. Magneto flywheel
6. Trigger coil
7. Ignition coils
8. Spark plugs
Battery/Ignition Switch
The ignition switch allows battery to supply the
electronic module for the ignition system.
Start Button
Besides enabling the starting system, the start but-
ton enables the ignition system.
Magneto Flywheel/Trigger Coil
The magneto flywheel features one projection
mark that works with the trigger coil. The trigger
coil sends the signals to the electronic module to
be processed for the ignition system.
Ignition Coils/Spark Plugs
The ignition coil receives its signal from the elec-
tronic module. The ignition coil steps up the input
voltage for the CDI system and the end result is
firing of the spark plugs. It is two coils that pro-
vides a separate spark to each spark plug.
05-02-2

ACCESSORIES

The battery supplies the DC current to all accessories.
GENERAL TESTING/
TROUBLESHOOTING
INFORMATION
The following gives general electrical-related prob-
lems. For specific system-related problems, refer
to proper system section.
It is possible that a component seems to operate
in static condition but in fact, it is defective. In this
case, the best way to solve this problem is to re-
move the original part and replace it with one
which is in good condition.
IMPORTANT: When having to solve an electrical
problem, the first thing to do is to check battery
condition as well as its cables and connections.
Also ensure the ignition switch is turned on. Check
solidity (close to battery) and related-circuit fuse
condition with an ohmmeter (visual inspection
could lead to false results). Also visually examine
harness and connections.
CAUTION: It is recommended to always dis-
connect the battery when replacing any electric
or electronic parts.
WARNING
Always disconnect BLACK (-) cable first and
reconnect last.
To perform verifications, a good quality multimeter
such as Fluke 111 (P/N 529 035 868) should be used.
Pay particular attention to ensure that pins are not
out of their connectors or out of shape. The trou-
bleshooting procedures cover problems not re-
sulting from one of these causes.
WARNING
Ensure all terminals are properly crimped on
wires and connector housings are properly
fastened.
VMR2004_018_05_02A.FM