It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' section

18STARTING THE ENGINE & RUNNING-IN ('Breaking-in)PRESSURIZED FUEL SYSTEM! Before starting the engine, always check the tightness of

20Turn the engine with starter box to draw fuel into the engine.FuelDeliver fuel into the carburetor.Fuel tank sideNow connect glowplug battery le

22NeedleThe position of the needle-valvewhen starting the engine.Close the needle-valve approx.15˚ after running the vehicle for1 to 2 full tanks of f

24Warning!Mixture adjustments (whether via the Metering Needle, or the Needle-Valve) cannot be made accurately under 'no-load' condi

26CARE AND MAINTENANCE1.2.3.The minute particles of foreign matter, that are present in any fuel may, by accumulating and partially obstructing fue

28TROUBLE SHOOTINGSymptomCauseCorrective actionEngine fails to fire.Fuel tank is empty.Fuel not reaching the engine.Fill the tank with fuel and repeat

30SymptomCauseCorrective actionSymptomCauseCorrective actionUnstable idleUnsuitable glowplugUse suggested glowplug in the instructions.Unsuitable fuel

321324567101112131415C.M2.6x18C.M2.6x7C.M3x18891617ENGINE EXPLODED VIEWType of screw C…Cap Screw＊ CAP SCREW SETS(10pcs./sets)Code No.Size Pcs. used in

34S.M3x311-11-222-134891058-173-1115-14-1610-15-112CARBURETOR EXPLODED VIEWType of screw S...Set Screw35The specifications are subject to alteration

36(71641800)O.S. GENUINE PARTS & ACCESSORIES(71642060)RP6(71642070)RP7O.S. Glow PlugRP8(72412000)(72412100)(72412200)(71521000)(73300305)(73301612

2! ! Remember that your engine is not a "toy", but a highly efficient internal-combustion machine whose power is capable

38MEMOC Copyright 2009 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan.60092260 091002TEL. (06) 6702-0225FAX. (06) 6704-27226

4! This engine is intended for model cars. Do not attempt to use it for any other purpose.Mount the engine in your model securely,

6PistonCylinder LinerCrankshaftENGINE CONSTRUCTIONWith this engine, the piston will feel tight at the top of its stroke (TDC) when the eng

8Please do not run on a public street, this could cause serious accidents, personal injuries and/or propetry damage.Please do not run near pedest

10GLOWPLUG IGNITERCommercialy available handy glowplug heater in which the glowplug battery and battery leads are integrated. FUELGenerally,

12Outer HeadCrankcaseMounting LugsExhaust Cover Plate Carburetor Type 21MCrankshaftBASIC ENGINE PARTSCrankshaft Ball Bearing (Front)13Install the exha

14GLOWPLUGThe role of the glowplugGlowplug lifeParticularly in the case of very high performance engines, glowplugs must be regarded as expenda

16ENGINE INSTALLATIONMake sure that the vehicle's engine mounting surfaces are level and in the same plane. Poor installation may cause distor