Os-engines 21XZ-M Manual de usuario

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

18ENGINE INSTALLATIONMake sure that the engine mounting beams in the hull are parallel, with their top surfaces in the same plane. If they ar

20The following procedure is suitable when a fuel containing 30% nitro-methane is used.Fill the tank completely with fuel.Temporarily remove the gl

22PRECAUTIONSWhen starting the engine, with the hull out off the water and no load on the engine, even below half throttle, the engine

24FINAL ADJUSTMENTFinal adjustment should be carried out only after the running-in has been completed.Run the hull (with throttle fully open) over the

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

32ENGINE EXPLODED VIEWType of screw C…Cap Screw＊ 1324567101112131415C.M2.6x18C.M2.6x7C.M3x1889161-110-1798710207987105579871180M2.6x7M2.6x18M3x18CAP S

34CARBURETOR EXPLODED VIEW4C.M3X81287S.M3X33-23-11035699-19-49-59-2 9-35-1Type of screw C…Cap Screw S...Set Screw＊ 79871110M3x8CAP SCREW SETS(10pcs./

36(71641800)O.S. GENUINE PARTS & ACCESSORIES(71642060)RP6(71642070)RP7O.S. Glow PlugRP8The specifications are subject to alterationfor improvement

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

38 Displacement Bore Stroke Practical R.P.M. Power output WeightSPECIFICATIONSTHREE VIEW DRAWINGDimensions (mm)4531.64UNF / -28120.5374

4! This engine was designed for model boats. Do not attempt to use it for any other purpose.Mount the engine in your model securely, following the ma

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

8GUARANTEEThis engine is constructed from the very best materials available and to the very highest engineering standards, using the most adv

10FUELGenerally, it is suggested that the user selects a fuel that is commercially available for model two-stroke engines and contains 10-30% nitr

12Marine HeadCrankcaseMounting LugsExhaust Cover Plate Carburetor Type 21DCrankshaftBASIC ENGINE PARTSBall Bearing (Front)Glow Plug RP713CARBURETOR CO

14As the idle mixture control screw is installed with LOCTITE, it may ini-tially feel stiff, and it is suggested to use a little larger

16INSTALLATION OF THE STANDARD ACCESSORIESInstall the exhaust seal ring supplied.Exhaust Seal RingGlowplugINSTALLATION OF THE DUST CAP SETIf the engi