FEATURES:

Long Stroke design for more power & torque
New rear bearing for longevity
Balanced crankshaft for a smoother run
Pressurized and regulated fuel injection system

INCLUDES:

YS91 SR Helicopter Engine
Check Valve
Needle Valve
English Operator's manual

SPECS:

Displacement: 14.88 cc
Bore: 27 mm
Stroke: 26 mm
Practical RPM Range: 2000-17,000
Weight Without Muffler: 533g