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New in stock.

UMS 5-Cylinder 125cc 4-stroke Radial Gas Engine Including ring muffler.

 Output Power  

 8hp

 Propeller  

 26x8 .. 26x10

 Weight  

 3050g (incl.muffler)  

  Delivery includes: CM-6 spark plugs, ignition and ringmuffler.

Technical  Specification:  
 Displacement                   (Cylinder Inhoud)  125  ccm                   

 Output Power                           (Vermogen) 

 8  hp
   kW
 Carburetor

 Wt-621

 Walbro
 Static Thrust    kg
 Speed Range                             (Toerental)  1000 - 6000  rpm (omw/min)    
 Propeller  26x8 .. 26x10  inch 
 Ignition power supply (Spanning ontsteking)  6 - 9.6  Volt
 Spinner mount thread  M4  mm 
 Crankshaft diameter  10  mm 
 Gas/Oil mix ratio     (Brandstof verhouding)  30 : 1  gas : oil
 Weight:
 Engine                     (including muffler)  3050  gram
 Muffler  -  gram 
 Ignition  610  gram 
 Documentation:
 User Manual         (Gebruikers Handleiding)  
 Approx. Fuel Flow  cc/min (full throttle)
 Link to manufacturer  
 Links:
 Spare Parts

 

Spark plugs are of type: CM-6

5-Cylinder 125cc 4-Stroke Gas / Petrol Radial Engine

The UMS 5-125 is a new radial engine which uses gas fuel. UMS has a lot 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 servicebale. All critical parts are easily accessible.

Key Features

  • 5-cylinder radial configuration—absolutely stunning looks and realism
  • 4-stroke
  • Midsize 125cc displacement
  • Comes complete with exhaust collector ring —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 gas/petrol fuel

 

The UMS-5-125cc 4-stroke radial gas engine from UMS is especially developped for scale models. 

Engine dimensions:

Diameter: 265 mm, Length: 166mm

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