Yamaha YFM660RN Service Manual page 24

Item
Carburetor:
Type/quantity
Manufacturer
Spark plug:
Type/manufacturer
Spark plug gap
Clutch type:
Transmission:
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type
Operation
Gear ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
Reverse gear
Chassis:
Frame type
Caster angle
Camber angle
Kingpin angle
Kingpin offset
Trail
Tread (STD)
Toe-in
Tire:
Type
Size
Manufacturer
Type
GENERAL SPECIFICATIONS
BSR33/2
MIKUNI
DPR8EA-9/NGK
0.8 ~ 0.9 mm (0.031 ~ 0.035 in)
Wet, multiple disc
Spur gear
71/34 (2.088)
Chain drive
40/13 (3.076)
Constant mesh, 5-speed/forward.
1-speed/reverse
Left foot operation
34/14 (2.428)
29/19 (1.526)
26/21 (1.238)
22/21 (1.047)
19/21 (0.904)
28/23 × 23 × 16 (1.750)
Steel tube frame
8°
–1°
14.5°
5 mm (0.20 in)
47 mm (1.85 in)
front 925 mm (36.42 in)
rear 840 mm (33.07 in)
0 ~ 10 mm (0 ~ 0.39 in)
Tubeless
AT21 × 7–10
front
AT20 × 10–9
rear
front DUNLOP
rear DUNLOP
front KT331 Radial
rear KT335 Radial
2 - 2
SPEC
Standard