O.S. engine max-140rx Owner's Instruction Manual
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O.S. engine max-140rx Owner's Instruction Manual

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It is of vital importance, before attempting to
operate your engine,
'SAFETY INSTRUCTIONS AND WARNINGS'
section on pages 2-4 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.
CONTENTS
INTRODUCTION, BASIC ENGINE PARTS
to read the general
2-4
5
6
7-8
CARBURETOR EXPLODED VIEWS
8-9
& PARTS LISTS
9
ENGINE EXPLODED VIEWS &
ENGINE PARTS LISTS
10
11-13
ENGINE THREE VIEW DRAWINGS
13
14
1
15-16
16-17
17
18
19
20-21
22
23
24

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Summary of Contents for O.S. engine max-140rx

  • Page 1: Table Of Contents

    CONTENTS SAFETY INSTRUCTIONS AND 15-16 RUNNING-IN (Breaking-in) WARNINGS ABOUT YOUR O.S. ENGINE 16-17 MIXTURE CONTROL ADJUSTMENT INTRODUCTION, BASIC ENGINE PARTS PD-06 FUEL PUMP -WARNING! INSTALLATION ENGINE CARE AND MAINTENANCE...

  • Page 2: Safety Instructions And Warnings About Your O.s. Engine

    (see 'NOTES' section relating to propeller safety). If at some future date, your O.S. engine is acquired by another person, we would respectfully request that Model engine fuel is poisonous. Do not allow it these instructions are also passed on to its new to come into contact with the eyes or mouth.

  • Page 3: Basic Engine Parts

    Remember this if you wish to avoid the risk of a painfully rapped knuckle! BASIC ENGINE PARTS INTRODUCTION The entirely new 23cc MAX-140RX has been designed expressly for FAI aerobatic competition under the latest Cylinder Head F3A regulations which permit two-stroke engines to have a much larger displacement than the 10cc limit imposed hitherto.

  • Page 4: Installation

    INSTALLATION With any single-cylinder engine, it is preferable to bolt the Remember to allow for some light spring compression in engine firmly to a body that has as much mass as the throttle linkage travel, so as to avoid stalling the servo possible, in order to minimize loss of power due to engine at the end of the throttle movement.

  • Page 5: Glowplug

    Below is an example of a typical installation. A muffler GLOWPLUGS pressurized fuel feed is not required. It may be convenient to lead the pipes outside the fuselage Since the compatibility of glowplug and fuel may have a and connect with approx. 35mm(1-1/2") length of silicone marked effect on performance and reliability, it would be tubing, as shown.

  • Page 6: Propellers

    TUNED SILENCER The O.S. Type T-6010 tuned silencer has been specially prepared for the MAX-140RX engine. It allows the engine to develop high performance at lower engine r.p.m. (e.g.around 8,000r.p.m.) which enables the contest flyer to qualify for noise reduction bonus points.

  • Page 7: Carburetor Controls

    From this measured data, you will find a range of Adjusting effective header pipe length settings through which r.p.m. do not vary significantly. For other combinations or conditions, set the effective pipe Set the header pipe length at the beginning of this range length as follows.

  • Page 8: Starting

    STARTING Install an appropriate propeller and tighten securely. Connect battery leads to glowplug. Bring electric starter into contact with spinner and To facilitate electric starting, fit an spinner for centring depress starter switch for one or two seconds. Repeat if the rubber drive insert of the starter.

  • Page 9: Mixture Control Adjustment

    Note: MIXTURE CONTROL ADJUSTMENT It is important to be able to run the engine on a rich mixture during the breaking-in period to avoid Before starting the engine, open the Needle-Valve 1 overheating. If the fuel/air mixture does not become turns from the fully closed position.

  • Page 10: Engine Care And Maintenance

    ENGINE CARE AND MAINTENANCE As noted above, foreign matter in the fuel used may cause Note : malfunctioning of the pump and/ or carburetor. Be sure Kerosene will cause swelling and rapid deterioration to use a high quality fuel filter between the refuelling of the fuel tubing.

  • Page 12: Genuine O.s. Parts & Accessories

    GENUINE O.S. PARTS & ACCESSORIES GLOW PLUGS MIXTURE CONTROL EXHAUST HEADER PIPE T-6010 TUNED SILENCER CARBURETOR 70B (72102100) (72104200) (27984000) No.8 (71608001) TYPE F (71615009) PROPELLER LOCKNUT SET SUPER FILTER NON-BUBBLE LONG SOCKET WRENCH FOR TRUTURN SPINNER WEIGHT (72403050) WITH PLUG GRIP (71521000) (45910300) (71531000)

  • Page 13: Memo

    MEMO 6-15 3-Chome Imagawa Higashisumiyoshi-ku Osaka 546-0003, Japan TEL. (06) 6702-0225 FAX. (06) 6704-2722 URL : http://www.os-engines.co.jp Copyright 2002 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan. 60090850 061102...

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