Thor 200 EVO



Walbro setting


Polini Engine 2 stroke monocylinder
Cooling Forced air
Bore for stroke 64 x 60
Displacement 193 cm3
Power Walbro carb. 28 HP a 7400 RPM / Pwk carb.model 29 HP a 8000 RPM
Cylinder Aluminum with Gilnisil coating
Compression ratio 11,4:1
Piston Two chromium plated rings mm 1
Intake Reed vale in the crankcase
Carburetor Walbro / Polini Float Ø28
Air filter Air box
Ignition Electronic with battery charger possible
Battery charger prearrangement Output power 40 W at 5500 RPM
Spark plug hood 5k Ω resistance
Fuel type Lead free petrol with 2% synthetic oil
Gear reduction unit Helical teeth in oil bath with 2,8 reduction ratio
Starting Pull start with self winding cable Flash Starter – Electric starter (optional)
Clutch Centrifugal in oil bath
Muffler Expansion with oval silencer
Engine weight 17,5 Kg (18,5 with electric starter)
Propeller rotation Clockwise

Float carburetor

Electrical circuit

Engine exploded view from N. 4019

Engine exploded view till N. 4018


Electric starter