O.S. Engines 21TM - Manual

It is of vital importance, before attempting to operate
your engine, to read the general
'SAFETY
INSTRUCTIONS AND WARNINGS' section on
pages 2-5 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 vehicle, radio control equipment, etc., are
accessible for checking at the same time.
1
2 5
6
7
8
12
22
25
23-24
26-29
8-10
13-16
30-33
17-19
20-22
10
11
CONTENTS
STARTING THE ENGINE & RUNNING-IN
FINAL ADJUSTMENT
CARBURETOR CLEANLINESS
CARE AND MAINTENANCE
CHECKING THE ENGINE
TROUBLE SHOOTING
ENGINE EXPLODED VIEW & PARTS LIST
CARBURETOR EXPLODED VIEW &
PARTS LIST
O.S. GENUINE PARTS & ACCESSORIES
THREE VIEW DRAWING
34-37
SAFETY INSTRUCTIONS AND
WARNINGS ABOUT YOUR O.S. ENGINE
ENGINE CONSTRUCTION
NOTES WHEN APPLYING AN ELECTRIC
STARTER
ABOUT THE ENGINE
BEFORE STARTING
BASIC ENGINE PARTS
CARBURETOR CONTROLS
FACTS ABOUT GLOWPLUG
INSTALLATION
38
39-40