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O.S. engine FS-40S-C, Owner'S Instruction Manual, Page: 29 / 30

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O.S. engine FS-40S-C Owner'S Instruction Manual Download Page 29

FS-40S-CX THREE VIEW DRAWING

Dimension(mm)

Displacement
Bore
Stroke
Practical R.P.M.
Power output
Weight

Specification

17.5

38.9

42

49

50

UNF1/4-28

20

20

80.5

6.49cc (0.396cu.in.)

21.2mm (0.835in.)

18.4mm (0.724in.)

3,000

~

21,000r.p.m.

0.9bhp/17,500r.p.m.

407g (14.35oz.)

28

Summary of Contents for FS-40S-C

Page 1: ...ontained 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 ...

Page 2: ...OWPLUG TOOLS ACCESSORIES etc PRESSURIZED FUEL SYSTEM STARTING RUNNING AND ADJUSTMENT IF THE ENGINE FAILS TO START VALVE ADJUSTING CARE MAINTENANCE PARTS REPLACEMENT GENUINE PARTS ACCESSORIES FS 40S C EXPLODED VIEW PARTS LIST FS 40S CX EXPLODED VIEW PARTS LIST CARBURETTOR EXPLODED VIEW PARTS LIST THREE VIEW DRAWING 2 5 6 7 8 8 9 9 10 10 11 11 12 13 13 16 21 20 27 28 20 17 19 22 23 24 25 26 CONTENTS...

Page 3: ...equest that these instructions are also passed on to its new owner SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O S ENGINE The advice which follows applies basically to ALL MODEL ENGINES and is grouped under two headings according to the degree of damage or danger which might arise through misuse or neglect WARNINGS NOTES These cover events which might involve serious in extreme circumstances even ...

Page 4: ...es of sparks or anything else which might ignite it Do not smoke or allow anyone else to smoke near to it Never operate your engine in an enclosed space Model engines like automobile engines exhaust deadly carbon monoxide Run your engine only in an open area Model engines generate considerable heat Do not touch any part of your engine until it has cooled Contact with the muffler silencer cylinder ...

Page 5: ... of the most powerful highspeed engines may eventually impair your hearing and such noise is also likely to cause annoyance to others over a wide area The wearing of safety glasses is also strongly recommended Take care that the glowplug clip or battery leads do not come into contact with rotating parts Also check that the linkage to the throttle arm is secure For their safety keep all onlookers e...

Page 6: ...ompression WITHOUT the glowplug battery being reconnected Do not attempt to disassemble the recoil starter of the 40S CX If you do so the very strong spring inside will be suddenly ejected This can be very dangerous Do not extend the starter cord more than 40cm 16 Do not abruptly release the operating handle Allow the cord to rewind smoothly while still holding the handle Pull the operating handle...

Page 7: ...equipped with a built in recoil starter system which eliminates the need for a separate electric starter and starter battery INTRODUCTION Rocker Cover Intake Pipe Cylinder Head Recoil Starter Assembly Crankcase Beam Mount Carburettor BASIC ENGINE PARTS Starter Handle FS 40S CX INSTALLING THE GLOWPLUG Install the washer on the glowplug and insert carefully into cylinder head making sure that it is ...

Page 8: ...enlarge them slightly with a needle file so that screws enter vertically Avoid forcing the screws INSTALLATION OF THE CARBURETOR As delivered the engine has its carburetor lightly fit into the intake boss Secure it as follows Loosen the retainer screw and remove the carburetor Place the rubber gasket at bottom of the intake boss and rotate the carburettor to its correct position and make sure that...

Page 9: ...ces of off road operation for which the double element Type 101 and 102Air Cleaners are recommended The lower height of the Super Air Cleaner 102S also facilitates easier installation in cars where available space may be restricted NOTE Where spacers are supplied joined in pairs see sketch separate them as shown Either face may be placed downwards Secure with locknuts If the bottom of the recoil s...

Page 10: ...ng time Always remove contaminated elements carefully to ensure that dirt cannot enter the carburettor REPLACEMENT OF ELEMENT Position the air cleaner correctly so that it does not foul the cylinder head or obstruct the needle valve FIT THE FILTER ELEMENT The element is already impregnated with a special filter oil As this oil is very sticky take care when handling it to prevent dust or dirt from ...

Page 11: ...n is retarded The FS 40S C and FS 40S CX are supplied with an O S Type F glowplug specially designed for O S four stroke engines Try to avoid spilling fuel over the starter unit and its cord Some fuels have a detrimental effect on these parts The starter prevents the engine from being rotated in the wrong direction The unit will be damaged if you attempt to force the flywheel in the opposite direc...

Page 12: ...isabletoinitiallyruntheenginewitharicher needle valve setting so that the optimum setting for the new fuel may be rechecked as described in the RUNNING IN paragraphs When engines are run at very high speeds and on high nitro fuels glowplug elements do not last so long Install a plug suitable for the engine Use fuel containing a moderate percentage of nitromethane unless more is essential for racin...

Page 13: ...hylene squeeze bottle with a suitable spout is required Model engine fuel is poisonous Do not allow it to come into contact with the eyes or mouth Always store it in a clearly marked container and out of the reach of children Model engine fuel is also highly flammable Keep it away from open flame excessive heat sources of sparks or anything else which might ignite it Reminder BATTERY INTEGRATED GL...

Page 14: ... provides an abundance of lubrication it also conducts away heat from the surrounding metal and this is further assisted by the partial evaporation of the alcohol content of the fuel STARTING RUNNING AND ADJUSTMENT The somewhat violent changes of vehicle attitude that occur in off road running combined with the fact that in buggy type cars the fuel tank is often located some distance from the carb...

Page 15: ...ne stops allow it to cool for a minute or two before restarting it In fact short runs interrupted by brief cooling off periods is good practice during running in With an aircraft engine cooling is also aided in large measure by the slipstream and some model car enthusiasts elect to carry out initial running in in this way by bench mounting the engine and temporarily fitting it with an aircraft typ...

Page 16: ...d still with the needle valve set rich to promote cool running Four stroke engine have stronger compression than two stroke engines Hold the chassis firmly when pulling the recoil starter Also wearing of gloves is recommended to avoid any risk of injury Note Front Rear Rotating Direction Starter Handle In case of FS 40S CX Press choke button on car s fuel tank sufficient to prime carburetor Do not...

Page 17: ...idling After running the engine for four or five tanks of fuel begin closing the needle 5 15 degrees between succeeding runs Also vary its speed from idling to medium RPM with the throttle See sketch Eventually the engine will begin to loosen up sufficiently to allow short bursts of full throttle acceleration with the needle valve at its optimum setting Do not close the needle valve any further If...

Page 18: ... be checked and readjusted as necessary O S Valve Adjusting Tool Kit is available as optional accessory VALVE ADJUSTING The kit comes in a plastic case and includes Code No 72200060 Feeler gauge 0 1mm Hex key 1 5mm Wrench 5mm For 40S CX IF THE ENGINE FAILS TO START Check the following Glowplug battery discharged or glowplug defunct Fuel not reaching carburettor Engine flooded Do not over prime Thi...

Page 19: ...wrench Fig 2 1 Locknut Wrench Slacken approx 1 4 to 1 2 turn Fig 2 Remove the cover from the rocker box on top of the cylinder head using the correct size Allen hex key 1 1 Turn the flywheel counter clockwise until compression is first felt then turn it a further quarter revolution At this point both valves should be closed If the prop driver drive hub of your engine is engraved with a letter T th...

Page 20: ...e will cause loss of power due to valve s not opening sufficiently On the other hand a total loss of clearance may cause difficult starting due to valves not closing properly resulting in loss of compression 2 3 Turn adjusting screw approx 1 2 turn counter clockwise to open gap using appropriate tool i e Allen hex key Fig 3 Fig 3 Fig 4 Adjusting Screw Turn approx 1 2 turn Allen Key Insert 0 1mm fe...

Page 21: ...Contact the O S distributor in your country for parts or full service See pages 21 of this booklet for details of parts CARE MAINTENANCE At the end of each operating session drain the fuel tank then energize the glowplug and try to re start the engine to burn off any fuel that may remain inside Repeat this procedure until the engine fails to fire Then remove the glowplug and drain off any residue ...

Page 22: ...012 72403212 GENUINE PARTS ACCESSORIES Super Joint Tube 15 Long Socket Wrench With Plug Grip Valve Adjusting Tool Kit O S Glow Plug TYPE F Super Air Cleaner 102S 101 102 Filter Elements 6pcs Dust Cap Set φ4 For Carburettor Nipple 102S Cleaner Body 5pcs 3pcs φ10 For Carburettor FS 40S C Hyper Exhaust Pipe Set 21 500 ...

Page 23: ... 4 2 4 1 3 2 3 1 5 7 f 5 4 6 C M3X12 C M3X18 C M2 6X12 C M2 6X8 C M3X8 C M2 6X7 8 1 s 1 s 2 s 2 g M3 5 C Cap Screw B Binding Head Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw FS 40S C EXPLODED VIEW Type of screw 22 ...

Page 24: ...Ball Bearing Camshaft Cam Cover Push Rod 2pcs Push Rod Cover Assembly 2pcs Push Rod Cover 1pcs Push Rod Cover O Ring 2pcs Cam Follower 2pcs Crankshaft Ball Bearing Front Propeller Nut Glow Plug Type F Super Air Cleaner 102S W 3 filter elements 102S Cleaner Body 101 102 Filter Element 6pcs 7 1615 009 2 3210 007 4 5231 000 4 5264 000 2 4881 824 4 5266 112 4 5266 102 4 5266 010 4 5201 150 4 5262 050 ...

Page 25: ...2 3 1 5 7 f 5 4 6 C M3X12 C M3X18 C M2 6X12 C M2 6X8 M M2 6X7 C M2 6X7 8 1 f 2 g M3 5 C M3X8 u 1 u 2 f 1 f 2 h j C Cap Screw B Binding Head Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw Type of screw FS 40S CX EXPLODED VIEW 24 ...

Page 26: ...ft Ball Bearing Camshaft Cam Cover Push Rod 2pcs Push Rod Cover Assembly 2pcs Push Rod Cover 1pcs Push Rod Cover O Ring 2pcs Cam Follower 2pcs Crankshaft Ball Bearing Front Propeller Nut Glow Plug Type F Engine Mount Spacer Super Air Cleaner 102S W 3 filter elements 102S Cleaner Body 101 102 Filter Element 6pcs 7 1615 009 2 3210 007 4 5231 000 4 5264 000 2 4881 824 4 5266 112 4 5266 102 4 5266 010...

Page 27: ...ment without notice 5 4 3 2 1 7 6 6 1 6 2 Description Code No Throttle Lever Assembly Carburetor Dust Cover Carburettor Rotor Carburettor Body Throttor Stop Screw Needle valve Assembly O Ring 2pcs Universal Nipple Carburettor Rubber Gasket No 2 1481 950 2 7881 820 2 1481 900 2 2681 310 4 5285 100 4 5285 200 2 2081 408 7 6 5 4 3 2 1 2 2615 000 2 1283 210 6 1 6 2 26 Type of screw ...

Page 28: ...6 49cc 0 396cu in 21 2mm 0 835in 18 4mm 0 724in 3 000 21 000r p m 0 9bhp 17 500r p m 323 5g 11 41oz Dimension mm Specification Displacement Bore Stroke Practical R P M Power output Weight 80 5 16 5 UNF1 4 28 50 17 5 42 20 5 49 27 ...

Page 29: ... Dimension mm Displacement Bore Stroke Practical R P M Power output Weight Specification 17 5 38 9 42 49 50 UNF1 4 28 20 20 80 5 6 49cc 0 396cu in 21 2mm 0 835in 18 4mm 0 724in 3 000 21 000r p m 0 9bhp 17 500r p m 407g 14 35oz 28 ...

Page 30: ...td All rights reserved Printed in Japan 040101 TEL 06 6702 0225 FAX 06 6704 2722 6 15 3 Chome Imagawa Higashisumiyoshi ku Osaka 546 0003 Japan U N E Q U A LLED QUALITY PRECISION PERFOR M A N C E E S T A BLISHING THE STANDARDS OF EXCELLE N C E ...

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