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Overall reduction ratio:
RS90P 6.02–1.58 : 1
RS90PLT 6.18–1.63 : 1
RST90 6.74–1.77 : 1
RST90PGT 6.44–1.70 : 1
Sheave distance:
267.0–270.0 mm (10.51–10.63 in)
Sheave offset:
13.5–16.5 mm (0.53–0.65 in)
Engagement speed (Subject to change
according to elevation settings.):
RS90P 3100–3500 r/min
RS90PLT 3100–3500 r/min
RST90 3000–3400 r/min
RST90PGT 2900–3300 r/min
Shift speed [Subject to change according to
elevation settings. Usually achieved after
approximately 800 m (0.5 mi) traveled.]:
RS90P 8000–8500 r/min
RS90PLT 8000–8500 r/min
RST90 8250–8750 r/min
RST90PGT 8000–8500 r/min
Drive chain type:
Silent chain enclosed in oil bath
Drive chain housing oil:
Type:
SAE 75W or 80W API GL-3 Gear oil
Capacity:
0.25 L (0.26 US qt, 0.22 Imp.qt)
Reverse system:
Yes
Primary reduction ratio:
3.80–1.00 : 1
Secondary reduction ratio:
RS90P 38/24 (1.58)
RS90PLT 39/24 (1.63)
RST90 39/22 (1.77)
RST90PGT 39/23 (1.70)
Secondary reduction ratio [R]:
RS90P 2.08
RS90PLT 2.08
RST90 2.27
RST90PGT 2.17
Fuel tank capacity:
RS90P 34.6 L (9.14 US gal, 7.61 Imp.gal)
RS90PLT 34.6 L (9.14 US gal, 7.61 Imp.gal)
RST90 39.3 L (10.38 US gal, 8.65 Imp.gal)
RST90PGT 34.6 L (9.14 US gal,
7.61 Imp.gal)
Specifications
Engine oil quantity:
With oil filter cartridge replacement:
RS90P 3.3 L (3.49 US qt, 2.90 Imp.qt)
RS90PLT 3.3 L (3.49 US qt, 2.90 Imp.qt)
RST90 3.0 L (3.17 US qt, 2.64 Imp.qt)
RST90PGT 3.3 L (3.49 US qt, 2.90 Imp.qt)
Without oil filter cartridge replacement:
RS90P 3.1 L (3.28 US qt, 2.73 Imp.qt)
RS90PLT 3.1 L (3.28 US qt, 2.73 Imp.qt)
RST90 2.8 L (2.96 US qt, 2.46 Imp.qt)
RST90PGT 3.1 L (3.28 US qt, 2.73 Imp.qt)
Total amount:
RS90P 4.0 L (4.23 US qt, 3.52 Imp.qt)
RS90PLT 4.0 L (4.23 US qt, 3.52 Imp.qt)
RST90 3.7 L (3.91 US qt, 3.26 Imp.qt)
RST90PGT 4.0 L (4.23 US qt, 3.52 Imp.qt)
Brake:
Type:
Hydraulic disc type (ventilated disc)
Operation:
Handle lever, left-hand operated
Throttle:
Operation:
Handle lever, right-hand operated
Electrical system:
Ignition system:
T.C.I.
Spark plug:
Manufacturer:
NGK
Model:
CR8E
Gap:
0.7–0.8 mm (0.028–0.031 in)
Battery:
Model:
YTX20L-BS
Voltage, capacity:
12 V, 18.0 Ah
Ten-hour rate amperage:
1.8 A
Bulb voltage, wattage × quantity:
Headlight:
12 V, 60/55 W × 2
Headlight bulb type:
Halogen bulb
Tail/brake light:
RST90 12 V, 5/21 W × 2
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