Description
The UMS 7-90 is a very reliable radial engines which uses gasoline as fuel. UMS has a ton of experience building radial engines. It has brought more than 2000 engines to market so far. The design and construction are upper class leading to a outstanding realibility of these engines. They are easily serviceable. All critical parts are easily accessible.
- 7-cylinder radial configuration—absolutely stunning looks and realism
- 4-stroke
- Midsize 90cc displacement
- Comes complete with exhaust collector ring and electronic ignition —one-box purchase for a ready-to-mount-and-run engine
- User-friendly choke and throttle bellcranks included—makes installation and operation easy
- Made from aluminum or bar stock where appropriate and CNC-machined—accurate and repeatable specifications each and every time
- Cylinder head and crankcases produced from aircraft grade alloys
- Heavy-duty double bearing crankshaft
- Billet aluminum pistons and hardened steel rings
- Hard-chromed and lapped cylinder bores
- Hardened steel cams
- Burns glow fuel
| 7-90CC RADIAL ENGINE | |
| TYPE | 4Stroke |
| CYLINDER | 7(ABC TYPE) |
| CAPACITY | 90CC |
| BORE | 25.0mm |
| STROKE | 26.0mm |
| THRUST(APPROX) | 9.5Kgf @24×10 Menz Prop |
| RPM RANGE | 1000-6000 |
| WEIGHT WITH SILENCER | 3.5Kg |
| ENGINE DIAMETER | 23.0cm |
| ENGINE LENGTH | 20.0cm |
| PROPELLER RECOMMENDED | 2blade26x10,24×12 |
| MUFFLER TYPE | Collector ring |
| PLUG TYPE | 1/4-32 Spark plug |
| CARBURETTOR | Walbro WT 793A |
| FUEL | Petrol |







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