Specifications:

Displacement : 0.809 cu in (13.3 cc) x4
Power Type : Glow
Crankshaft Threads : 5/16-24
Cylinders : Flat Four
HP : 4.1 hp @ 8,000 rpm
Plug Type : (4) Type F glow plugs
Product Height : 3.15 in (80mm) from center of mounting holes
Product Length : 7.15 in (181.5mm) from back of mount to front of drive washer
Product Width : 7.72 in (196mm)
Prop Range : 18 x 10 - 22 x 8
Recommended Fuel : 2-Stroke fuel with 5%-15% nitromethane and 16% MINIMUM oil content
RPM Range : 1,800 - 8,500 rpm
Stroke : 0.866 in (22.0mm)
Total Weight : 4.83 lb (2.19 kg)
Bore : 1.091 in (28.0 mm)
Carb Type : 2-needle rotary