O.S. Engine GT55 Gas Engine  [OSMG1555]

It's comparable in appearance with other O.S. 2-cycle machines, with a significant number of extra-deep and -thin air conditioning fins in the crankcase and head. An original 1-piece crankcase design removes gaskets and enhances power and accuracy.

A distinctive front-mounted carbohydrate, but provides several performance advantages.

Better carburetor cooling, to get more consistent engine runs and high performance.

Needs faster standoffs, which results in safer installation (mounting) much less vibration overall.

Quite simple, direct installing of the throttle and choke linkages.
Another major performance advantage may be the IG-01 Capacitive Discharge Ignition. Developed from proprietary O.S. technology, it uses a microcomputer programmed for optimum spark advance. Magnetic sensors on crankcase and prop drive detect ignition timing. The IG-01 additionally detects and compensates for wet plugs, ensuring quick begins. Designed to accept a wide range of input voltages, the IG-01 requires minimal present in standby mode and features a low-voltage warning (intermittent motor operation).

Other benefits include:

No oil seal is required, eliminating rpm destroyed because of extra friction.

SPECS

• Stock Number:OSMG1555
• Displacement:3.352 cu in (54.93 cc)
• Bore:1.62 in (41.2 mm)
• Stroke:1.62 in (41.2 mm)
• Practical rpm:1,500-8,000