Specifications ST90
ENGINE
Model
Type
Bore X stroke
Piston displacment
Compression ratio
Starter system
Carburettor
Air cleaner
Lubrication syste
TRANSMISSION
Clutch
Transmission type
First gesr
Second gear
Third gear
Fourth gear
CHASSIS
Tyre size
147FMF
Single-cylinder, 4-stroke, f air cooled.
47mm *49.4mm
3
85cm
9:1
Kick
Piston type
Wet-type
Pressure and splash lubrication
Multiple-plate, wet-type
4-Gear, pedal. Gear ratio (crankshaft:output shaft)
36/11
31-18
25/21
20/22
Front tyre 2.5 x 10
Rear tyre 3.0 x 10
131