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A  fuel  tank  of  approximately 
360cc  capacity  is  suggested.   
This  allows  around  12  minutes  flying  time, 
dependent upon the type of fuel used, the size 
of propeller and on the amount of full-throttle to 
part-throttle operation throughout the flight.

Fuel Tank

GLOW PLUG

O.S. Type F glowplug is supplied with the engine.

GLOWPLUG IGNITER

Commercialy  available  handy 
glowplug  heater  in  which  the 
glowplug battery and battery leads are integrated. 

Alternatively, one of the 
purpose-made manual or 
electric fuel pumps may be used to transfer fuel 
directly from your fuel container to the fuel tank.

FUEL PUMP

Manual

Electric

Electric Starter and
Starter Battery

Required when starting
the engine.

12-Volt lead-acid battery

Electric
Starter

Install  a  filter  on  the  outlet  tube  of  your 
refueling  container  to  prevent  entry  of 
foreign  matter  into  fuel  tank.  O.S.  ‘Super  Filters’ 
(large and small) are available as optional extras.

O.S. Super Filter (Fuel Can Filter)

S

To  prevent  the  pickup  from  adhering  to 
the tank wall under suction and restricting 
fuel flow, slots may be filed in the end of 
the  weight.  Alternatively,  an  O.S.  Non-
Bubble Weight is available as an optional 
extra.

O.S. Non-Bubble Weight

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It  is  recommended  to  install  a  good 
in-line  filter  between  the  fuel  tank  and 
carburetor  to  prevent  entry  of  foreign  matter 
into the carburetor.

Fuel Filter

SILICONE FUEL LINE

Heatproof silicone tubing of approx. 
5mm  o.d.  and  2.5mm  i.d.  is  required  for  the 
connection between the fuel tank and engine.

8mm

TOOLS

HEX Screwdriver

SCREWDRIVER

Necessary for engine installation.
1.5mm, 2.5mm

Necessary for carburetor adjustments.

Phillips Screwdriver

No.2, etc.

Socket Screwdriver

5mm, 5.5mm, 7mm 

LONG SOCKET WRENCH WITH PLUG GRIP

Recommended  for  easy  removal  and 
replacement  of  the  angled  and  recessed 
glowplug,  the  O.S.Long  Socket  Wrench 
incorporates a special grip.

End Wrenches

12-14mm, etc.

Needle Nose Pliers

Summary of Contents for Alpha Series

Page 1: ...suggested that any instructions supplied with the aircraft radio control equipment etc are accessible for checking at the same time 1 2 6 7 8 9 10 13 20 21 27 28 34 35 36 37 38 17 18 SAFETY INSTRUCTI...

Page 2: ...onous 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 Never operate your engine in an en closed space Model e...

Page 3: ...check the tightness of the propeller nut and retighten it if necessary before restarting the engine Also check the tightness of all the screws and nuts before restarting the engine If you install a s...

Page 4: ...20 feet or 6 meters when preparing your model for flight If you have to carry the model to the take off point with the engine running be especially cautious Keep the propeller pointed away from you a...

Page 5: ...minimizes noise with its soft low amplitude sound Threaded header pipe allows adjustments in the distance between silencer and exhaust and exhaust angle New lubricating system eliminates the need for...

Page 6: ...ddition of a spinner assembly for centering the starter sleeve is desirable Use a heavy duty well balanced spinner either of metal or plastic Spinner FUEL The FS 110 should be operated on a methanol b...

Page 7: ...ank O S Super Filters large and small are available as optional extras O S Super Filter Fuel Can Filter S To prevent the pickup from adhering to the tank wall under suction and restricting fuel flow s...

Page 8: ...their top surfaces are in the same plane 15 How to fasten the mounting screws Hardwood mounting beams Radial motor mount cast aluminum Tighten second nut firmlydown onto first nut Tighten this nut fir...

Page 9: ...with the engine If a longer extension is reguired cut a commercially available rod to the required length bend one end to an L shape insert it into needle s center hole and secure it by tightening the...

Page 10: ...TANK LINES Make sure that the tank is well rinsed out with methanol or glow fuel before installation and that the pickup weight is well clear of the bottom of the tank when held vertically Plug comme...

Page 11: ...n it is necessary to replace Carefully install plug finger tight before final tightening with the correct size plug wrench GLOWPLUG The role of the glowplug Glowplug life Particularly in the case of v...

Page 12: ...succeeding sections under Starting Running in and Idle Adjustment The Needle Valve When set to produce maximum power at full throttle this establishes the basic fuel air mixture strength The correct m...

Page 13: ...remaining in the filament may burn you 25 Check that the current to the glowplug is switched off 3 To close the needle valve turn it clockwise while to open the needle valve turn it counter clockwise...

Page 14: ...nd for flying your model 1 2 Open the needle valve 3 4 turns from the fully closed position and start the engine 3 Open the throttle slowly to the mid speed position and disconnect the current to the...

Page 15: ...o be readjusted to a richer setting 7 29 IDLE MIXTURE ADJUSTMENT Start the engine open the throttle fully and set the needle valve slightly rich 30 45 from the highest r p m setting Close the throttle...

Page 16: ...seldom require adjustment However if after a considerable amount of running time a loss of power is detected or if he engine has been disassembled for repair these clearances should be checked and res...

Page 17: ...uel in the engine at the conclusion of a day s flying Accepted practice is to cut off the fuel supply while the engine is still running at full throttle then expel as much fuel residue as possible by...

Page 18: ...omplete Type 60Y Piston Ring Piston Piston Pin Piston Pin Retainer 2pcs Connecting Rod Cylinder Liner Cover Plate Cover Gasket Crankshaft Crankshaft Ball Bearing Rear Crankcase Camshaft Ball Bearing 1...

Page 19: ...No 1 Carburetor Rubber Gasket 1pc Rotor Guide Screw Mixture Control Valve Assembly O Ring L 2pcs O Ring S 2pcs Carburetor Rotor Throttle Lever Assembly Throttle Lever Retaining Screw Air Funnel Set S...

Page 20: ...VALVE ADJUSTING TOOL KIT NON BUBBLE WEIGHT NON BUBBLE WEIGHT S 72200060 72109700 M12 IN COWL HEADER PIPE INVERTED 90D IN COWL EXHAUST HEADER PIPE M12 IN COWL HEADER PIPE SIDE 60D 72109710 39 Displace...

Page 21: ...ight 2008 by O S Engines Mfg Co Ltd All rights reserved Printed in Japan 60092130 110903 6 15 3 Chome Imagawa Higashisumiyoshi ku Osaka 546 0003 Japan TEL 06 6702 0225 FAX 06 6704 2722 URL http www os...

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