•Single cylinder air cooled
•Two stroke
•Bore 65 mm
•Stroke 52 mm
•Total displacement 172.5 cc
•Compression ratio 11:1
•Fuel delivery to the crankcase: four blade reed-valve system connected to the crankcase
•Diaphragm carburettor
•Reducer with Poly V belt available in 1: 2.2, 1: 2.3, 1: 2.5 and 1:2.6
•Continuous operating temperature 180° C, maximum temperature 200° C
•Engine mounting: by 5 shock absorbing rubber mounts
•Propeller rotation: counterclockwise
•Maximum RPM 7400 RPM

•Spark B 9ES

•Electric starter included
•Crankcases molten in G-Al Si 9 UNI 3051 alloy subsequently treated
•Six port distribution system
•Cylinder in light silicon alloy with Cermetal protective coating
•Piston with ultra-light structure reinforced with side flaps for heat dispersion. Flaps in 2 segments, 1.2 mm S10 chrome-plated semitrapezoidal cast iron.
•Head in die cast aluminium alloy with high percentage of silicon and concentric combustion chamber, calculated squish
•Drive shaft in 18 Ni Cr Mo5 with 5 thermic treatments on every component
•Connecting rod in copper plated steel 18Ni Cr Mo 5 joined to the drive shaft through very precise high speed silver-plated roller bearings
•Roller bearings fit for high speed class C3
•Seal ring in Witon with very high resistance and long duration
•Electronic ignition CDI with battery recharge

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