Suzuki VZR1800 2008 User Manual

ELECTRICAL SYSTEM 10-23
TROUBLESHOOTING
No spark or poor spark
NOTE:
Check that the transmission is in neutral and the engine stop switch is in the “RUN” position. Grasp the
clutch lever. Check that the fuse is not blown and the battery is fully-charged before diagnosing.
Step 1
1) Check the ignition system couplers for poor connections.
Is there connection in the ignition system couplers?
Step 2
1) Measure the battery voltage between input lead wires at the ECM with the ignition switch in the “ON”
position. (E-02, 19, 24: O/G and B/W, E-03, 28, 33: O/W and B/W)
Is the voltage OK?
Step 3
1) Measure the ignition coil primary peak voltage. (!10-25 to -27)
NOTE:
This inspection method is applicable only with the multi-circuit tester and the peak volt adaptor.
Is the peak voltage OK?
Step 4
1) Inspect the spark plugs. (!2-13 to -16)
Is the spark plug OK?
YES Go to Step 2.
NO Poor connection of couplers
YES Go to Step 3.
NO
• Faulty ignition switch
• Faulty turn signal/side-stand relay
• Faulty engine stop switch
• Broken wire harness or poor connection of related circuit couplers
YES Go to Step 4.
NO Go to Step 5.
YES Go to Step 5.
NO Faulty spark plug(-s).

Suzuki VZR1800 2008 Specifications

General

Displacement	1783 cc
Bore x Stroke	112.0 mm x 90.5 mm
Compression Ratio	10.5:1
Fuel System	Fuel injection
Ignition	Electronic ignition (transistorized)
Transmission	5-speed constant mesh
Final Drive	Shaft drive
Front Suspension	Inverted telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Front Brakes	Dual hydraulic disc
Rear Brakes	Single hydraulic disc
Engine Type	4-stroke, liquid-cooled, DOHC, V-twin
Front Tire	130/70R18M/C 63H
Overall Length	2485mm (97.8 inches)
Overall Height	1185 mm
Ground Clearance	140 mm (5.5 in)
Seat Height	705 mm
Curb Weight	347 kg