This electrical wiring diagram manual applies for 2003 Kawasaki Vulcan VN2000 motorcycle models. Herein you will find detail information about the electrical system and its components which covers discussion on wiring diagram, electrical part location, battery removal/installation/inspection and charging, charging system, ignition system (ignition coil removal/installation/inspection, spark plug, crankshaft sensor, etc), starter motor, lighting system, radiator fan system, switch and sensor.
Electrical Specification of 2003 Kawasaki Vulcan VN2000
Type: Sealed Battery
Model name: FTZ16-BS
Capacity: 12 V 18 Ah
Voltage: 12.6 V or more
Alternator type: Three-phase AC with delta connection, and rare-earth single magnet rotor
Battery charging voltage: 14.2 ~ 15.2 V @3 000 r/min (rpm)
Alternator output voltage (no load): 70 ~ 95 V @3 000 r/min (rpm)
Stator coil resistance: 0.18 ~ 0.22 ?
Regulator/rectifier Type: Load dumping regulator with full-wave rectifier
3 needle arcing distance: 6 mm (0.24 in.) or more
Primary winding resistance: 1.9 ~ 2.5 ?
Secondary winding resistance: 10 ~ 16 k?
Primary peak voltage: 210 V or more
Spark plug gap: 1.0 ~ 1.1 mm (0.039 ~ 0.043 in.)
Spark plug cap resistance: 3.75 ~ 6.25 k?
Crankshaft sensor peak voltage: 3.0 V or more
Crankshaft sensor resistance: 420 ~ 520 ?
Crankshaft sensor air gap: 1.0 mm (0.04 in.) (Non-measurable and non-adjustable)
Electric Starter System
Brush length: 12.5 mm (0.49 in.) (Service limit 5 mm, 0.20 in.)
Commutator diameter: 28 mm (1.10 in.) (Service limit 27 mm, 1.06 in.)
Air Switching Valve
Air switching valve resistance: 18 ~ 22 ? at 20 °C (68 °F)
Decompression solenoid resistance: 3.0 ~ 3.7 ?
Switch and Sensor
Fuel level sensor resistance FULL position: 3 ~ 5 ?
EMPTY position: 213 ~ 219 ?
Rear brake light switch timing: ON after about 10 mm (0.39 in.) pedal travel
Engine oil pressure switch resistance: When engine is stopped: ON
When engine is running: OFF
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