O.S. Engines 25LA - Manual (Page 19)

10 Hold model securely when starting
11 Setting the throttle
12 Heat glowplug
Starter
Assistant should hold
the model so that it
cannot move forward
when the engine starts.
Be careful not
to be hit by propeller!
Glowplug battery.
Place as far to the
rear as possible.
Fully opened
position
Fully closed
position
Set at this Position.
1
3
2
3
Starting battery
Connect battery leads as shown
(polarity is immaterial.)
13 Apply electric starter
Assistant
18