TROUBLESHOOTING AND ELECTRICAL SYSTEM
Electrical Circuits
2001 Pioneer 900 Gasoline Vehicle Maintenance and Service Manual Page 11-9
11
ENGINE IGNITION CIRCUIT
The engine ignition circuit is independent of all other circuits except the kill circuit. It consists of the ignition
coil with internal igniter, spark plug, RPM limiter, and connecting wires (Figure 11-5, Page 11-9).
ENGINE KILL CIRCUIT
The ignition coil supplies electrical power for the spark plug; therefore, the proper way to stop the engine is to
run this electrical power to ground, bypassing the spark plug (Figure 11-6, Page 11-10).
The engine kill circuit consists of the key switch and connecting wires. The engine can be stopped by turning
the key switch to the OFF position. See Lockout Cam Circuit on page 11-11.
Figure 11-4 Generator Circuit
Figure 11-5 Ignition Circuit
F2
DF
F1
A2
A1
FRAME
GROUND
BATTERY
VOLTAGE
REGULATOR
STARTER /
GENERATOR
ENGINE
GR
EEN
SOLENOID
DIODE
RED
RED
RED
RED
WHITE
WHITE
YELLOW
YELLOW
BLACK
BLACK
BLACK
BLACK
GROUND
RPM LIMITER
IGNITION COIL
WITH IGNITER
SPARK PLUG
ENGINE KILL
WIRE
BULLET
CONNECTOR
