Yamaha XSR900 2022, Service Manual

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2-5
ENGINE SPECIFICATIONS
Plate quantity 6 pcs
Wear limit 2.82 mm (0.111 in)
Friction plate 2 thickness 2.92–3.08 mm (0.115–0.121 in)
Plate quantity 3 pcs
Wear limit 2.82 mm (0.111 in)
Clutch plate 1 thickness 2.18–2.42 mm (0.086–0.095 in)
Plate quantity 1 pcs
Warpage limit 0.10 mm (0.004 in)
Clutch plate 2 thickness 1.90–2.10 mm (0.075–0.083 in)
Plate quantity 7 pcs
Warpage limit 0.10 mm (0.004 in)
Clutch spring free length limit 42.53 mm (1.67 in)
Drivetrain
Transmission type Constant mesh 6-speed
Gear ratio
Primary reduction ratio 1.681 (79/47)
1st 2.571 (36/14)
2nd 1.947 (37/19)
3rd 1.619 (34/21)
4th 1.381 (29/21)
5th 1.190 (25/21)
6th 1.037 (28/27)
Secondary reduction ratio 2.813 (45/16)
Main axle runout limit 0.08 mm (0.0032 in)
Drive axle runout limit 0.08 mm (0.0032 in)
Shifting mechanism
Installed shift rod length 236.0–238.0 mm (9.29–9.37 in)
Air filter
Air filter element Oil-coated paper element
Fuel injector
Resistance 12.0
Ω
Idling condition
Engine idling speed 1200–1400 r/min
O2 feedback control Active
Coolant temperature 90–110
°
C (194–230
°
F)
Difference in vacuum pressure between the
cylinders 0 kPa–1.3 kPa (0 mmHg–10 mmHg, 0 inHg–0.4
inHg)
CO% 0.0–2.0 %
Fuel line pressure (at idle) 300–390 kPa (3.0–3.9 kgf/cm², 43.5–56.6 psi)