O.S. Engines 35AX User Manual
O.S. Engines Hardware
It is of vital importance, before attempting to operate 
your engine, to read the general 
'SAFETY
INSTRUCTIONS AND WARNINGS' section on 
pages 2-6 of this booklet and to strictly adhere to the 
advice contained therein.
Also, please study the entire contents of this 
instruction manual, so as to familiarize yourself 
with the controls and other features of the engine.
Keep these instructions in a safe place so that you 
may readily refer to them whenever necessary.
It is suggested that any instructions supplied with 
the aircraft, radio control equipment, etc., are 
accessible for checking at the same time.
Two-Stroke Engine For Airplanes
1
2-6
7-8
9
10
20-21
22
27-30
33
15-17
SAFETY INSTRUCTIONS AND WARNINGS 
ABOUT YOUR O.S. ENGINE
ENGINE CONSTRUCTION,
NOTES WHEN APPLYING AN ELECTTRIC STARTER
ABOUT THE ENGINE
BASIC ENGINE PARTS
BEFORE STARTING
INSTALLATION
INSTALLATION OF THE STANDARD ACCESSORIES
FUEL TANK LOCATION
MIXTURE CONTROLS
GLOWPLUG
STARTING
CONTENTS
RUNNING -IN, IDLING ADJUSTMENT CHART
MIXTURE CONTROL VALVE ADJUSTMENT
REALIGNMENT OF MIXTURE CONTROL VALVE,
SUBSEQUENT STARTINGPROCEDURE
SUBSEQUENT READJUSTMENT,
CARBURETOR CLEANLINESS
TROUBLE SHOOTING WHEN THE 
ENGINE FAILS TO START
CARE AND MAINTENANCE
ENGINE/ CARBURETOR EXPLODED 
VIEWS & PARTS LIST
O.S. GENUINE PARTS & ACCESSORIES
THREE VIEW DRAWING
MEMO
31
32
34-35
36-37
38-45
11-14
18-19
23
46-47
48-49
24-26
50