I found this:

Displacement: 4,58cc
Bore: 18,50mm
Stroke: 17,00mm
Maximum power: 3.6 HP
RPM 33.000
Crankshaft Type: SG
Glow Plug Type: Standard
Exhaust Type Rear


and this:
Specifications...

- Capacity: .28ci/4.57cc
- Bore: 18.50mm
- Stroke: 17.00mm
- RPM: 33,000
- Power: 3.81hp
- Weight: 400g

Maybe Close,, I know the cooling heads on these are Red, and the block is black. I'm sure their different models but could be similar

Wolv.