Needed To Complete - UMS 5-55 cc User Manual

Needed to Complete

• 2-stroke oil
• Propeller
• Fuel line (3.5mm ID)
•
Engine mounting screws
Installing the Engine in the Airframe
Properly installing the engine to either the airframe or an engine test stand for break-in is crucial
to getting the most power and longest life from your engine.
WARNING:Always attach the engine mounting
ring to a flat plate surface, such as
6–8mm plywood or carbon fiber plate.
Installing the Engine in the Airframe
1. Install the engine on the airframe with Cylinder No.1 in the top (12:00) position
(which is stickered on the top cover).
• Engine baffles
• Electronic ignition battery (2S 7.4V Li-Po or 6V Ni-MH)
• Electronic ignition switch
WARNING: Never use a standoff between the
1
firewall and the mounting ring. Vibration
between the standoff and the mounting ring
will damage the mounting ring and cause
the engine to separate from the airframe.
5