1. Manuals
  2. Brands
  3. O.S. engine Manuals
  4. Engine
  5. FS-70 Ultimate
  6. Owner's instruction manual

O.S. engine FS-70 Ultimate Owner's Instruction Manual

Four cycle engine
Hide thumbs
Table of Contents

Advertisement

Quick Links

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, INSTALLING THE GLOWPLUG
GLOWPLUGS, FUEL
to read the general
2-4
5
6
7-8
9
10
11
12
13
CARBURETOR EXPLODED VIEWS &
ENGINE EXPLODED VIEWS &
ENGINE PARTS LISTS
ENGINE THREE VIEW DRAWINGS
1
13-14
15
16-17
18
19
20-21
22
23
24

Advertisement

Table of Contents
loading

Related Manuals for O.S. engine FS-70 Ultimate

Summary of Contents for O.S. engine FS-70 Ultimate

  • Page 1: Table Of Contents

    It is suggested that any instructions supplied with the aircraft, radio control equipment, etc., are accessible for checking at the same time. CONTENTS SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE RUNNING-IN 13-14 INTRODUCTION, INSTALLING THE GLOWPLUG IDLE MIXTURE ADJUSTMENT...

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

    600 feet(180 metres) per second, it will be understood all times. that such a failure could result in serious injury, (see 'NOTES' If at some future date, your O.S. engine is acquired by section relating to propeller safety). another person, we would respectfully request that these instructions are also passed on to its new owner.
  • Page 3 WITHOUT the glowplug battery being reconnected. Remember this if you wish to avoid the risk of a painfully rapped knuckle! INTRODUCTION The FS-70 ULTIMATE comes equipped with the new O.S. FS- 70U diaphragm type fuel pump and matching Type 60U carbur- etor incorporating a built-in pressure regulator. These features...

  • Page 4: Installation

    INSTALLATION How to fasten the mounting screws. Because the FS-70 ULTIMATE is a powerful, large- Hardwood mounting beams displacement, single-cylinder four-stroke-cycle engine, it is essential to use very substantial engine mounting. Tighten second nut firmly Conventional wooden mounting beams should be of rigid down onto first nut.

  • Page 5: Exhaust Header Pipe And Silencer

    The length of Line B is approx 65mm. Note: Since the FS-70 ULTIMATE has a positively pumped fuel supply, it does NOT require muffler pressurization.

  • Page 6: Care Of Fuel Pump And Regulator

    Aerobatic models Foreign matter has adhered to filament or plug body has GLOWPLUGS corroded. The FS-70 ULTIMATE is supplied with an O.S. Type F Engine tends to cut out when idling. glowplug, specially designed for O.S. four-stroke engines. Starting qualities deteriorate.

  • Page 7: Propeller And Spinner Attachment

    Locknut. Throttle Valve Since the FS-70 ULTIMATE is intended to be started with an electric starter, the addition of a spinner assembly for centering the starter sleeve is desirable. In this case, optional Mixture Control Screw locknut sets are available from O.S.

  • Page 8: Idle Mixture Adjustment

    Start and adjust the engine as detailed in the starting If overheating should be suspected at any time during flight instructions. (i.e.if the engine begins to "labor") reduce power by partially closing the throttle and land the aircraft to enable the Now open the throttle fully and run the engine with the needle-valve to be readjusted to a richer setting.

  • Page 9: Valve Adjusting

    If the gap is found to be less than 0.04mm, it is not necessary to readjust the clearance if the engine has Valve clearances are correctly set before any O.S. engine good compression and starts easily. leaves the factory and, in normal use, will seldom require Equally, if the gap exceeds 0.04mm...

  • Page 10: Care And Maintenance

    The use of nitromethane in the fuel can also contribute to the problem. As noted earlier, the FS-70 ULTIMATE has it most vulnerable components protected against such attack but, as...

  • Page 12: Parts List

    PARTS LIST Code No. Description Code No. Description 44704200 Rocker Cover 44782000 Pump Unit (FS-70U) 44714300 Rocker Cover Gasket 18-1 44782160 Nipple No.16 45961400 Rocker Support Assembly 18-2 45771000 Nipple No.5 45961410 Rocker Support 18-3 22681957 Nipple No.7 45761600 Rocker Arm Retainer (2pc. /1pair) 44702000 Crankshaft 44753000...

  • Page 13: Memo

    THREE VIEW DRAWING Dimensions(mm) Specifications Displacement 11.45cc / 0.698cu.in. 27.7mm / 1.091in. Bore Stroke 19.0mm / 0.748in. PracticalR.P.M. 2.000-15.000r.p.m. 25.6 Output 1.2ps / 11.000r.p.m. 4- 3.7 Weight 455g / 16.0oz. (without Locknut, Drive Hub, Woodruff Key, F-4020(U) Silencer Assembly) 527.3g / 18.61oz. (With F-4020(U) Silencer Assembly) F-4020(U) Silencer Assembly 51g / 1.8oz.
  • Page 14 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 2003 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan. 60091400 090304...

Table of Contents