YS 91SR Helicopter Engine
Brand New, Made in Japan!
Very Limted Stock, In Stock Now!
The 91 SR is the latest version in helicopter engine technology from YS YAMADA!
FEATURES:
- New Stroke design for superior operation and more power
- New carburetor design for easier adjustment
- Factory preset fuel regulator
- New rear bearing for longevity
- Balanced crankshaft for a smoother run
- Pressurized and regulated fuel injection system
- Same physical size as 61ST-2, 80ST, 91ST making it easy to add more power to your helicopter
INCLUDES:
- YS91 SR Helicopter Engine
- Check Valve
- Needle Valve
- English Operator's manual
SPECS:
- Displacement: 14.89 cc
- Bore: 27 mm
- Stroke: 26 mm
- Practical RPM Range: 2000-17,000
- Weight Without Muffler: 533g
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Helicopters 
