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| OSM18500 OS .91 RZ-Heli Ring Rear Exhaust |
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Features
- Aluminum cylinder head, anodized blue in color
- Designed for Hirobo and other scale helicopters where engine must
- fit inside canopy to preserve heli's scale lines
- Ringed piston
- 60M-C 3-needle carburetor with mid-range needle for precise
- adjustments
- Two year warranty
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