Features :
- Ofna 51250 Jammin .21 Engine
- Tuned for buggies
- Special Slide Valve Carburetor has high heat nylon body to counteract heat from the engine that could cause the fuel to boil before entering the engine
- ABC construction (Aluminum piston with a Chromed Brass cylinder)
- Red anodized aluminum head
- Engine delivers excellent bottom end power with great top end run out
- Includes Turbo Plug type head

Specifications :
- RPM: 36000
- Bore: 16.26mm
- Displacement: .21 cu in (3.49cc)
- Stroke: 16.8
- HP: 3
- Weight: 11.64oz (330g)
- Length: 3.66" (93mm)
- Width: .82" (21mm) mounting hole centers same side
- 1.69" (43mm) mounting hole centers opposite side
- Width at Mounting Tabs: 1.7" (44.1mm)
- Height: 4.33" (110mm) from bottom of crankcase/top of cylinder head
- Height: 3.7" (94mm) from bottom of mounting tabs/top of cylinder head
- Needle settings: factory setting equals 6½ turn out in total

Contents :
Ofna Jammin' .21JPX Engine with turbo glow plug, instruction sheet and Jammin' sticker