Drive Train Specifications (Yum1A/Yum2A) - Yamaha UMAX Service Manual

DRIVE TRAIN SPECIFICATIONS (YUM1A/YUM2A)

Primary and secondary sheave
Type
V-belt width and outer line length
V-belt wear limit
Secondary sheave torque cam angle
Transmission
Governor type
Secondary reduction system
Secondary reduction ratio
Forward
Reverse
Shift stroke
Differential type
Transmission oil
Type
Quantity
DRIVE TRAIN SPECIFICATIONS (YUM1A/YUM2A)
V-belt automatic centrifugal engagement
31.0 × 1010 mm (1.22 × 39.75 in)
28.0 mm (1.10 in)
2-B
Oil bath flyweight
Helical gear
11.48:1
15.38:1
15–17 mm (0.59–0.67 in)
Bevel gear
SAE 80W-90 or SAE 90 gear oil
400 cm³ (0.44 US qt, 0.35 Imp.qt)
2-7