Suzuki GSX-R750, Service Manual

Page: 478 / 495

GSX-R750K2 (’02-MODEL) 11-39
TRANSM DRIVE CHAIN
Unit: mm (in) Except ratio
ITEM STD/SPEC. LIMIT
Primary reduction ratio 1.857 (78/42) ———
Final reduction ratio 2.470 (42/17) ———
Gear ratios Low 2.785 (39/14) ———
2nd 2.052 (39/19) ———
3rd 1.681 (37/22) ———
4th 1.450 (29/20) ———
5th 1.304 (30/23) ———
Top 1.181 (26/22) ———
Shift fork to groove clearance 0.10 – 0.30 0.50
(0.004 – 0.012) (0.020)
Shift fork groove width 5.0 – 5.1
(0.197 – 0.201)
———
Shift fork thickness 4.8 – 4.9
(0.189 – 0.193)
———
Drive chain Type RK525ROZ4 ———
Links 110 links ———
20-pitch length
319.4
———
(12.57)
Drive chain slack (on side-stand) 20 – 30
(0.79 – 1.18)
———
Gearshift lever height 52 – 62
(2.05 – 2.44)
———
THER RA FAN + COOLANT
ITEM STD/SPEC. LIMIT
Thermostat valve opening
Approx. 82°C (180 °F)
temperature
———
Thermostat valve lift Over 8 mm (0.31 in) at 95°C (203°F) ———
Engine coolant temperature 20°C
Approx. 2.45 k
Ω
———
sensor resistance (68°F)
50°C
Approx. 0.811 k
Ω
———
(122°F)
80°C
Approx. 0.318 k
Ω
———
(176°F)
110°C
Approx. 0.142 k
Ω
———
(230°F)
130°C
Approx. 0.088 k
Ω
———
(226°F)
Radiator cap valve opening 95 – 125 kPa
———
pressure (0.95 – 1.25 kgf/cm
2
, 13.5 – 17.8 psi)
Cooling fan thermo-switch OFF
→
ON Approx. 105°C (221°F) ———
operating temperature
ON
→
OFF Approx. 100°C (212°F) ———
Engine coolant type
———
Engine coolant Reserve Approx. 250 ml
———
tank side (0.3/0.2 US/Imp qt)
Engine Approx. 2 150 ml
———
side (2.3/1.9 US/Imp qt)
Use an antifreeze/coolant compatible with alumi-
num radiator, mixed with distilled water only,
at the ratio of 50:50.