Suzuki RMX450Z Service Manual

Engine General Information and Diagnosis: 1A-66
C41 (Use of FI indicator light)
Step Action Yes No
1 1) Turn off the ignition switch.
2) Remove the left frame cover. Refer to “Exterior Parts
Removal and Installation” in Section 9D (Page 9D-1).
3) Check the ECM coupler (1) for loose or poor contacts.
If OK, then measure the FP relay input voltage.
4) Disconnect the ECM coupler.
5) Insert the needle-point probe to ECM coupler.
6) Measure the voltage between terminal “14” and ground.
Special tool
(A): 09900–25008 (Multi circuit tester set)
(B): 09900–25009 (Needle-point probe set)
Tester knob indication
Voltage ( )
FP relay input voltage
Battery voltage
Is the voltage OK?
• FP relay (ECM)
malfunction.
• O/G or R/B wire open
or shorted, or poor
terminal “14” or “15”
connection.
• If the wire and
connection are OK.
intermittent trouble or
faulty ECM.
• Recheck each
terminal and wire
harness for open
circuit and poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again.
Open or short circuit in
the O/G wire.
1
IA02J1110070-02
V
“14”
(B)
(A)
I933H1110070-05

Suzuki RMX450Z Specifications

General

Displacement	449cc
Compression Ratio	12.5:1
Fuel System	Fuel injection
Starter	Electric
Transmission	5-speed constant mesh
Final Drive	Chain
Front Suspension	Inverted telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Engine Type	4-stroke, liquid-cooled, DOHC
Bore x Stroke	96.0 mm x 62.1 mm
Front Brakes	Single disc
Rear Brakes	Single disc
Front Tire	80/100-21
Fuel Tank Capacity	6.2 L (1.6 US gal)
Overall Length	2185 mm (86.0 in)
Ground Clearance	325mm
Seat Height	955mm
Wheelbase	1, 480mm