technical specification:

Cycle 2 strokes

Total displacement 172,5 c.c.

Bore 65 mm.

Stroke 52 mm.

Compression ratio

11:1

Peak rpm 7.500 rpm

Cooling by air

Piston of light alloy with 2 piston ring of cast iron S10 crominiumplated

Cylinder Nickasil Coated

lining

Head of die-casted light alloy with high percentage of silicon

Crankcase molten in alloy G ¨CAl Si 9 UNI 3051

Connecting rod of steel 18 Ni Cr Mo 5 forged and

copper- plated with rolls fit for

high speed

Carburettor diaphragm

Feeding reed valve with 4 petals on the crankcase

Electronic ignition type CDI (electric version) type TCI (manual version)

Regulation of spark advance 18¡ã at 7000

rpm

Spark plug NGK B9ES

Reduction with belt Poly-V from 1 to 2.2 to 1 to 2.6

Cylinder head temperature max 200¡ãC

Fuel mixture of premium petrol 98 octane and oil at 2%

Oil synthetic top-quality oil for 2-strokes engines

Expenditure from 2,5 to 4,5 liter/hour depending from the load and the speed

Fixing to the frame 5 rubber antivibration mounts

Rotation counterclockwise in front of the propeller