Description
The OS FR7-420 (Sirius 7) is a seven-cylinder radial overhead-valve fourstroke-cycle engine of 70cc displacement. The engine maintains the same features of stress free starting, super smooth idling and high torque power which is always the hallmark of OS large size multi-cylinder engines. With its finely detailed design and outstanding scale appearance and sound, the engine's quality is second to none.
Standard Accessories:
- Glow plug Type F (installed on the engine)
- Plug Cable Set
-Plug Cable (7pcs.)
-Plug Terminal (7pcs.) (w/silicone tube)
- Lead For Earth diameter 5 (1pc.)
- Needle-Valve Extension Cable Set
- Drain Plug
- Carburetor Insert
- Radial Mount Retaining Screw Set
-Engine mounting screws (M5x25) (5pcs.)
-Lock Washers (diameter 5) (5 pcs.)
-Blind Nuts (M5) (5pcs.)
- Valve adjusting tool kit
-Feeler gauge 0.04mm
-Feeler gauge 0.1mm
-Hex. key 1.5mm
-Wrench 5mm
- Decal
- Instruction Manual
- Aluminium Case
Specifications:
| Displacement: | 9.95 cc x 7 / 0.607 c.u.in. x 7 |
| Bore: | 24.0 mm / 0.945 in. |
| Stroke: | 22.0 mm / 0.866 in. |
| Practical R.P.M: | 1500-7000 r.p.m |
| Weight: | 3167 g / 111.71 oz. |
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