Os-engines 21VZ-M Manual do Utilizador

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

18As the idle mixture control screw is installed with LOCTITE, it may ini-tially feel stiff, and it is suggested to use a littli larger screwdriver. T

20Open the Needle-Valve 1.5 turns from the fully closed position.OpenCloseNeedle ValveSwith on the transmitter and make sure that each linkage moves c

22NeedleThe position of the needle-valvewhen starting the engine.Close the needle-valve approx.30˚ after running the hull forone full tank of fuel.Rep

24Warning!Carry out adjustments patiently, under actual running conditions, until the engine responds quickly and positively to the throttle control.M

26CARE AND MAINTENANCEEngine maintenance is very important for good running next time. Carry out the followings.Do not forget to clean the filters re

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 M...Oval Fillister-Head ScrewF...Flat Head Screw N...Round Head Screw S...Set ScrewC.M2.6x7C.M3x1

344C.M3X81-11287S.M3X33-23-110111235699-19-49-59-2 9-321D CARBURETOR EXPLODED VIEWType of screw C...Cap Screw M...Oval Fillister-Head ScrewF...Flat H

36(72106300)(73300305)(73301612) M2.6x7(79871020) M2.6x18(79871055)(71521000)(55500002)(72403050)(71641600)P6(71641600)P8(71530200)(71531000)(73301812

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

383.46 cc (0.211 cu.in.)16.6mm (0.654 in.)16.0mm (0.630 in.)3,000-40,000 r.p.m.2.5 ps / 33,000 r.p.m.340g (12oz.) JAPAN JAPAN4530.84UNF / -28121374522

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 engine is cold.

8NOTES WHEN APPLYINGAN ELECTRIC STARTERDo not over-prime. This could cause a hydraulic lock and damage the engine on application of the electric start

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

12Water Cooled HeadCrankcaseMounting LugsCover Plate Carburetor Type 21DCrankshaftBASIC ENGINE PARTSGlow Plug P7 Front BearingWater cooled plug cap

14Screw in the screw gently until it stops.Tighten a further120-180˚Epoxy glueor LOCTITEINSTALLATION OF CARBURETORCarburetorSealing WasherCarburetor R

16GLOWPLUGSince the glowplug and fuel combination used may have a marked effect on performance and reliability, it would be worthwhile to experiment w