Suzuki GW250 User Manual

4-56 FI SYSTEM DIAGNOSIS
– Between P wire terminal and other terminal at GP switch
coupler: infinity
• Voltage
 09900-25008: Multi circuit tester set
 Tester knob indication: Voltage ()
– Between P wire or B/W wire and ground: approx. 0 V
(When ignition switch is ON)
Is check result OK?
Step 3
GP switch check
1) Turn the ignition switch OFF.
2) Measure the resistance between the P wire and B/W wire,
when shifting the gearshift lever from 1st to Top.
 09900-25008: Multi circuit tester set
 Tester knob indication: Resistance ()
 GP switch resistance:
Approx. 500  or more
(+ terminal: P – - terminal: B/W)
Is check result OK?
2
YES
Replace the ECM with a known good one, and
inspect it again.
NO Repair or replace the defective wire harness.
2
YES
Replace the ECM with a known good one, and
inspect it again.
NO
Replace the GP switch with a new one.
(3-22 and 3-76)
3

Suzuki GW250 Specifications

General

Engine Type	4-stroke, 2-cylinder, liquid-cooled, SOHC
Displacement	248 cc
Bore x Stroke	53.5 mm x 55.2 mm
Compression Ratio	11.5:1
Fuel System	Fuel injection
Ignition	Electronic ignition (Transistorized)
Starter	Electric
Transmission	6-speed constant mesh
Final Drive	Chain
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Swingarm type, coil spring, oil damped
Front Tire	110/80-17M/C 57H, tubeless
Rear Tire	140/70-17M/C 66H, tubeless
Curb Mass	183 kg (403 lbs)
Front Brakes	Single disc
Rear Brakes	Single disc
Fuel Tank Capacity	13.3 liters
Overall Width	760 mm
Overall Height	1, 075 mm
Wheelbase	1, 430 mm
Ground Clearance	165 mm (6.5 in)
Seat Height	780 mm (30.7 in)
Overall Length	2, 145mm (84.4 inches)