O.S. engine MAX-50SX Ring User 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

O.S. engine MAX-50SX Ring Specifications

General

Brand	O.S. engine
Model	MAX-50SX Ring
Category	Engine
Language	English

Summary

SAFETY INSTRUCTIONS AND WARNINGS

FEATURES OF FX SERIES ENGINES

BEFORE INSTALLING THE ENGINE

Installing the glowplug

Instructions for properly installing the glowplug into the engine.

Connecting fuel tubing

Guidance on connecting fuel lines between the needle-valve outlet and carburetor.

BASIC ENGINE PARTS

NEEDLE-VALVE LOCATION

INSTALLATION OF THE ENGINE

THROTTLE LINKAGE AND SILENCER

FUEL TANK LOCATION

GLOWPLUG

FUEL AND PROPELLERS

FUEL

Guidance on selecting and using appropriate fuel for the engine.

PROPELLERS

Recommendations for selecting and using suitable propellers with the engine.

MIXTURE CONTROLS

BEFORE STARTING

STARTING

RUNNING-IN ("Breaking-in")

IDLING ADJUSTMENT CHART

MIXTURE CONTROL VALVE ADJUSTMENT

REALIGNMENT OF MIXTURE CONTROL VALVE

STARTING AND READJUSTMENT PROCEDURES

SUBSEQUENT STARTING PROCEDURE

Simplified steps for restarting the engine after initial setup.

SUBSEQUENT READJUSTMENT

Guidance on making minor adjustments to controls due to varying conditions.

ENGINE CARE AND CLEANLINESS

CARBURETOR CLEANLINESS

Ensuring the carburetor is free from obstructions for optimal performance.

ENGINE CARE AND MAINTENANCE

Procedures for maintaining the engine after operation and for storage.

EXPLODED VIEWS

EXPLODED VIEW (50SX)

Detailed diagram of the 50SX engine parts and their assembly.

EXPLODED VIEW (40,46FX)

Detailed diagram of the 40,46FX engine parts and their assembly.

EXPLODED VIEW (61FX)

Detailed diagram of the 61FX engine parts and their assembly.

EXPLODED VIEW (91FXRING)

Detailed diagram of the 91FXRING engine parts and their assembly.

CARBURETOR DETAILS

CARBURETOR 40B (50SX,40,46FX)

Details and parts list for the 40B carburetor used with 50SX, 40,46FX engines.

CARBURETOR 60C (61FX)

Details and parts list for the 60C carburetor used with the 61FX engine.

CARBURETOR 60F (91FXRING)

Details and parts list for the 60F carburetor used with the 91FXRING engine.

O.S. GENUINE PARTS & ACCESSORIES

ENGINE SPECIFICATIONS AND DRAWINGS

MAX-50SXRING SPECIFICATIONS

Technical specifications for the MAX-50SXRING engine model.

MAX-40FX SPECIFICATIONS

Technical specifications for the MAX-40FX engine model.

MAX-46FX SPECIFICATIONS

Technical specifications for the MAX-46FX engine model.

MAX-61FX SPECIFICATIONS

Technical specifications for the MAX-61FX engine model.

MAX-91FXRING SPECIFICATIONS

Technical specifications for the MAX-91FXRING engine model.