OS-140RX

This powerhouse is a very popular 2-stroke engine for pattern use.  Typical OS high quality design and construction, rear exhaust configuration.  Very reliable pump system. 

The mixture control assembly solves the mid range richening that troubled earlier versions.  Turns an APC 17x12 at over 8000rpm with 20% nitro and non-tuned muffler.

O.S. Covers this engine with a 2-Year Limited Warranty

SPECIFICATIONS

Stock Number:  OSMG0678

Displacement:  1.404 cu in (23 cc)

Bore:  1.26 in (32 mm)

Stroke:  1.126 (28.6 mm)

Output:  3.5 hp @ 9,000 rpm

Weight:  29.3 oz (830 g)

Recommended Props:   15x14 through 16x16