Suzuki RMX450Z Service Manual

1A-39 Engine General Information and Diagnosis:
2 1) Turn off the ignition switch.
2) Connect the ECM coupler and disconnect the ECT
sensor coupler.
3) Measure the ECT sensor resistance. Refer to “ECT
Sensor Inspection” in Section 1C (Page 1C-6) for
details.
Special tool
(A): 09900–25008 (Multi circuit tester set)
Tester knob indication
Resistance (Ω)
ECT sensor resistance
Approx 2.58 kΩ at 20 °C (68 °F)
(Terminal – Terminal)
NOTE
Refer to “ECT Sensor Inspection” in Section 1C
(Page 1C-6) for details.
Is the resistance OK?
• G/Y or G/R wire open
or shorted to ground,
or poor “22” or “24”
connection.
• If 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. Refer to “ECM
Removal and
Installation” in
Section 1C
(Page 1C-1).
Replace the ECT
sensor with a new one.
Refer to “ECT Sensor
Removal and
Installation” in Section
1C (Page 1C-5).
Step Action Yes No
(A)
I933H1110044-01

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