O.S. Engine MAX-40FX Owner's Instruction Manual

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.

1

CONTENTS

SAFETY INSTRUCTIONS AND 

WARNINGS ABOUT YOUR O.S. ENGINE

FEATURES OF FX SERIES ENGINES,  

BEFORE 

INSTALLING THE ENGINE

BASIC ENGINE PARTS 

NEEDLE-VALVE LOCATION

INSTALLATION OF THE ENGINE

THROTTLE LINKAGE, SILENCER

FUEL TANK LOCATION

GLOWPLUG

FUEL, PROPELLERS

MIXTURE CONTROLS

BEFORE STARTING

RUNNING-IN (Breaking-in)

IDLING ADJUSTMENT CHART

MIXTURE CONTROL VALVE ADJUSTMENT,

REALIGNMENT OF MIXTURE CONTROL VALVE

SUBSEQUENT STARTING PROCEDURE

SUBSEQUENT READJUSTMENT

CARBURETOR CLEANLINESS,

ENGINE CARE AND  MAINTENANCE

ENGINE EXPLODED VIEWS &

ENGINE PARTS LISTS

CARBURETOR EXPLODED VIEWS 

& PARTS LISTS

GENUINE O.S. PARTS & ACCESSORIES

ENGINE THREE VIEW DRAWINGS

2-6

7

8

8-10

10-11

11-12

12

13

14-15

15

16-17

STARTING

17-18

19-21

22

23

24

25

37-38

26-33

34-36

39-42