Suzuki GSX-R750 User Manual

1A-94 Engine General Information and Diagnosis:
DTC “C36” (P1764), “C37” (P1765), “C38” (P1766) or “C39” (P1767): Secondary Fuel Injector Circuit
Malfunction
B838H21104023
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
Troubleshooting
CAUTION
!
When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with a
needle pointed tester probe to prevent terminal damage.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures (Page 1A-15)”.
Detected Condition Possible Cause
Some failure exists in the fuel injector signal in a high
load, high revolution condition.
• Injector circuit open or short.
• Injector malfunction.
• ECM malfunction.
ECM
Fuel pump relay
Secondary fuel injector
Y/R
Lg
Lg/W
Lg/G
Lg/Bl
#22
#32
#42
#12
To engine
stop switch
#2#3#4 #1
59
58
56
57
I837H1110074-02
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I837H1110007-02

Suzuki GSX-R750 Specifications

General

Engine Type	4-stroke, 4-cylinder, liquid-cooled, DOHC
Displacement	750cc
Compression Ratio	12.5:1
Fuel System	Fuel injection
Front Suspension	Inverted telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Overall Width	710 mm (28.0 in)
Ground Clearance	130 mm (5.1 in)
Seat Height	810 mm (31.9 in)
Curb Weight	190 kg (419 lbs)
Ignition	Electronic ignition (transistorized)
Starter	Electric
Final Drive	Chain
Bore x Stroke	70.0 mm x 48.7 mm
Transmission	6-speed, constant mesh
Rear Brakes	Disc
Front Tires	120/70ZR17M/C (58W)
Rear Tires	180/55ZR17M/C (73W)
Fuel Tank Capacity	17.0 L (4.5 US gallons)
Overall Length	2, 030 mm (79.9 in)
Wheelbase	1390 mm (54.7 in)
Front Brakes	Dual hydraulic disc