Polini 910 GP4 Junior Air Cooled 4.2hp
Technical Specifications
Engine 2-stroke monocylinder
Cooling Air
Bore for stroke 36 x 39
Displacement 39.69
Compression Ratio 14:1
Carburettor SHA 14-14
Ignition Electronic with inductive discharge
Fuel Unleaded with 2% synthetic oil
Intake Reed valve in the crankcase
Starting Pull start with self-winding cable
Clutch Dry centrifuge with counter weights
Frame Latticed tubular frame
Front brake ø 148 mm
Rear brake ø 130 mm
Front tyre 90/65-R6.5 Junior
Rear tyre 90/65-R6.5 Junior
Tank 2.2 ltr
Weight 20Kg
Length 940 mm
Width 240 mm
Seat height 395 mm


Polini 910 GP4 Junior Air Cooled 4.2hp