O.S. Engine 12XZ ABC 12F Slide Engine  [OSMG1993]

A new crankshaft featuring a counter-balancing shape and a more efficient intake slot.
The connecting rod is constructed of a brand new material, plus the crankcase has been strengthened.
Improvements have also been built to the liner ports, inner mind plus the 12F fall valve carbohydrate.
A high-performance RP6 plug is included.

• Stock Number: OSMG1993
• Displacement: 0.128 cu in (2.10 cc)
• Bore: 0.543 in (13.8 mm)
• Stroke: 0.551 in (14.0 mm)
• Practical rpm range: 5,000-40,000
• Production: 1.65 ps @ 34,000 rpm
• Engine Weight: 8.32 oz (236 g)
• Includes: RP6 plug, exhaust seal band, dirt caps