It is of vital importance, before attempting to operate your engine, to read the general 'safety instructions and warnings' section on pages 2-6 of this booklet and to strictly adhere to the advice contained therein. Also, please study the entire contents of this instruction manual, so as to familia...
2 remember that your engine is not a "toy", but a highly efficient internal- combustion machine whose power is capable of harming you, or others, if it is misused. As owner, you, alone, are responsible for the safe operation of your engine, so act with discretion and care at all times. If at some fu...
4 notes this engine was designed for model aircraft. Do not attempt to use it for any other purpose. Mount the engine in your model securely, following the manufacturers' recommenda- tions, using appropriate screws and lock- nuts. Be sure to use the silencer (muffler) supplied with the engine. Frequ...
6 notes adjust the throttle linkage so that the engine stops when the throttle stick and trim lever on the transmitter are fully retarded. Alternatively, the engine may be stopped by cutting off the fuel supply. Never try to stop the engine physically. Take care that loose clothing (ties, shirt slee...
8 features almost total freedom from vibration relatively low noise level pleasant sound specific to a rotary engine compact shape which enables easier installation in most models commercially available top-quality model engine fuel containing 15% oil, either synthetic or castor, can be used. Note d...
10 basic engine parts carburetor type 21g propeller nut propeller washer drive hub glowplug typef re-2010 silencer front housing rotor housing engine mount air funnel 11 tools, accessories, etc. The following items are necessary for operating the engine. Before starting glow plug o.S. Typef glowplug...
12 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 ex...
14 never touch, or allow any object to come into contact with, the rotating propeller and do not crouch over the engine when it is running. Reminder! Warning: make sure that the propeller is well balanced. An unbalanced propeller and/or spinner can cause serious vibration which may weaken parts of t...
16 mixture controls the needle valve when set to produce maximum power at full throttle, this establishes the basic fuel/air mixture strength. The correct mixture is then maintained by the carburetor's built-in automatic mixture control system to cover the engine's requirements at reduced throttle s...
18 1/3 2/3 attention to tank height approx. 15mm plug (commercially available) for carburetor installation of the engine and fuel tank use the engine mount supplied with the engine to install the engine in the model. Decide the installing position. Any direction will do. As short as possible set the...
20 throttle linkage before connecting the throttle to its servo, make sure that the throttle arm and linkage safely clear any adjacent part of the airframe structure, etc., as the throttle is opened and closed. Connect the linkage so that the throttle is fully closed when the transmitter throttle st...
22 connect battery leads to glowplug. Check that the needle-valve is closed. (do not overtighten.) now open the needle- valve counter-clockwise 2 turns to the starting setting. 3. 4. Turn needle-valve clockwise to close (for leaner mixture) turn needle-valve counter-clockwise to open (for richer mix...
24 running-in ("breaking-in") for running-in, fit the engine with a well- balanced propeller intended for actual flight. Use a fuel mixture as specified. Running-in procedure is the same as for a conventional reciprocating model engine. After starting the motor, open the throttle fully, but use a ri...
26 1 2 3 symptom factor cause corrective action recharge the electric starter battery. Recharge lead-acid cell or replace dry battery. (note: an unused, or almost unused, dry battery may sometimes be of insufficient capacity if it is "old stock".) replace glowplug. Check that applied voltage is not ...
28 care and maintenance please pay attention to the matters described below to ensure that your engine serves you well in regard to performance, reliability and long life. As previously mentioned, it is vitally important to avoid operating the engine in conditions where dust, disturbed by the propel...
30 engine exploded view type of screw c...Cap screw m...Oval fillister-head screw f...Flat head screw n...Round head screw s...Set screw c.M2.6x8.6 c.M2.6x7 c.M2.6x5 4 3 2 1 3-1 5 6 7 8 9 10-1 10-2 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25-1 n.+m3.5x5 c.M3x8 c.M3x25 14-1 25.
31 enginen parts list the specifications are subject to alteration for improvement without notice. 1 2 3 3-1 4 5 6 7 8 9 10 10-1 10-2 11 12 13 14 14-1 15 16 17 18 19 20 21 22 23 24 25 25-1 23210007 23209003 41612020 41826005 41625000 41622020 41601000 41614010 41614100 41604010 41602020 41820001 418...
32 1 2 3 4 5 6 7 7-1 7-2 7-3 7-4 7-5 7-6 7-7 8 9 n.+m3.5x5 s.M3x3 s.M3x3 carburetor exploded view type of screw c...Cap screw m...Oval fillister-head screw f...Flat head screw n...Round head screw s...Set screw 33 1 2 3 4 5 6 7 7-1 7-2 7-3 7-4 7-5 7-6 7-7 8 9 41618600 41618410 41618200 41618300 2268...
34 (72403050) (23024009) (73101000) (71521000) m2.6x5 (79871010) m3x8 (79871110) (41651300) m3.5x6 (4pcs.) m2.6x7 (79871020) o.S. Genuine parts & accessories silencer extension adaptors set 1/4"-28(l) spinner nut long propeller nut sets the specifications are subject to alteration for improvement wi...
36 c copyright 2006 by o.S.Engines mfg. Co., ltd. All rights reserved. Printed in japan. 60091860 090600 tel. (06) 6702-0225 fax. (06) 6704-2722 6-15 3-chome imagawa higashisumiyoshi-ku osaka 546-0003, japan url : http://www.Os-engines.Co.Jp.
