O.S. Engines 55AX User Manual
Page 5

8
NOTES WHEN APPLYING
AN ELECTRIC STARTER
Do not over-prime. This could
cause a hydraulic lock and damage
the engine on application of the
electric starter.
If over-primed, remove glowplug,
close needle-valve and apply
starter to pump out surplus fuel.
Cover the head with a rag to
prevent pumped out fuel getting
into your eyes.
9
STANDARD ACCESSOIES
Glow Plug No.8
(suppplied with the engine)
Needle Valve Extension Cable Set
E-3020 Silencer Assembly
Silencer Retaining Screw (M3x35 2pcs.)
ABOUT THE ENGINE
This is a high performance two stroke
engine designed for sport and aerobatic
models.
Crankcase and cylinder head are of aero-
shape design which give advantage of light
weight, compact size.
The new 40J carburetor needlevalve
assembly has now been angled backward
for safety.
New E-3020 silencer (POWER BOX)
develops very effective muffling.
Also, the compact body enables it to be fit
within most cowls.