Os 50 sx hyper manual

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Add to Cart. Product Details Key Features Ideal for use in any 50 class helicopter Head design offers improved combustion efficiency for stable hovering and aerobatic flight Large 0. Instead, idle speed is adjusted by controls, including the throttle stick and trim lever means of the throttle trim lever on the trans- positions, and hold the main rotor securely before mitter. C Warm the engine by allowing it to idle for about 30 A This enables the full r.

If the engine stops, advance the throttle then allows the engine to be stopped, from the trim lever slightly to increase the idle rpm. Then transmitter, by closing the throttle completely with open the throttle sufficiently to 'float' the model the trim lever. D lf, at this time, the engine is slow to pick up and H Hover the model and actuate the throttle to produces an excess of exhaust smoke, the mixture observe response over the medium speed range.

Correct this condition by turning the lf the engine smokes excessiveIy and throttle Mixture Control Screw clockwise. Do not close the NeedIe Valve too smoke and rpm may drop suddenly or the engine much, keeping it a little on the rich side at this may stop.

This condition may also be initiated by stage. I lf, on the other hand, hovering is not stable and E lf, on the other hand, the mixture is too Iean, this response to the throttIe is over-sensitive, or if the wiIl be indicated by a marked lack of exhaust engine tends to overheat, this indicates that the smoke and a tendency for the engine to cut out mixture is too lean and should be corrected by when the throttle is opened.

Mixture Control Screw counter-clockwise to enrich J When satisfactory hovering flight has been the mixture. K After about 10 seconds of idling, open the throttle G Having provisionally set the idle mixture, the next to 'float' the model. If the symptoms of either rich or Iean running are observed, readjust the Mixture Control Screw accordingly. L Now adjust the Needle Valve to achieve the best performance when the model is flying at full throttle.

Screw degrees counter-clockwise. N For helicopters, good throttle response at medium Q Throttle response at hovering speeds is aIso r.

If the optimum mid-range helicopter flight. The minute alter the mixture settings, except to make minor particles of foreign matter that are present in any fuel adjustments to the Needle Valve occasionally, to take can easily partially obstruct these orifices and upset account of variations in climatic conditions. Finally, half-turn counter-clockwise, prior to establishing a occasionally remove the needle-valve holder from the new setting.

The same applies if the silencer type is carburetor as shown in Photo and extract any changed. A different silencer may alter the exhaust remaining foreign matter that may have lodged in the pressure applied to the fuel feed and call for a revised location shown in right.

Needle-Valve setting. The use of a different glowplug, or changes to the Dirt and fbrous matter Remove this with mostly accumulate here mainrotor and its pitch angles may also require an 8mm spanner compensating carburetor readjustments. Make sure that the Mixture Control Valve is at the factory setting. Adjust pitch Adjust pitch control control characteristics.

Servo output arm Throttle arm Locate the servo so that its output arm and the Throttle control rod A and B should be equal of length. If differential throttle move- ment is required, make necessary adjustment at the transmitter. The minute particles of foreign matter, that are 4.

Finally, inject some after-run oil into the engine. Rotate present in any fuel may, by accumulating and the engine a few times by hand, to make sure that it partially obstructing fuel flow, cause engine is free, and then with an electric starter for 4 to 5 performance to become erratic and unreliable. Note: Do not inject after-run oil into the carburetor as this may One of these filters, installed on the outlet tube cause the O-rings inside the carburettor to deteriorate.

It is also These procedures will reduce the risk of starting recommended that a good in-line filter be installed difficulties and of internal corrosion after a period of between the tank and carburetor. Do not forget to clean the filters regularly to remove dirt and lint that accumulate on the filter screens.

Also, clean the carburetor itself occasionally. At the end of each operating session, drain out any fuel that may remain in the fuel tank. Next, energize the glowplug and try ot restart the engine to burn off any fuel that may remain inside the engine. Repeat this procedure until the engine fails to fire. Cause Corrective action Fuel tank is empty. Fill the tank with fuel and repeat Fuel not reaching the engine. Priming procedure. Glowplug element is burnt out. Replace glowplug.

Glowplug battery discharged Recharge or replace the battery. Clogged fuel filter Clean or replace fuel filter. Silencer inside is dirty. Clean inside silencer. Over priming Remove glowplug and pump excess fuel. Fuel tubing is disconnected. Connect fuel tubing securely.

Fuel tubing is kinked, split or has a hole. Check the tubing carefully and replace if necessary. Return the needle valve Incorrect carburetor settings and mixture control valve to basic position. Incorrect servo linkage Re-linkage after setting servo at neutral.

Mare sure it rotates counter clockwise seen Reverse rotating direction of electric starter. Cause Corrective action Insufficient fuel in the tank. Fill the tank with fuel. Deteriorated glowplug Replace glowplug. Engine overheated Wait until engine is cooled. Do not disconnect plug battery and wait until Disconnecting plug battery too soon. Fit O rings to the tank screws to Air bubbles in fuel prevent bubbles. Symptom Unstable idle Cause Corrective action Unsuitable glowplug Use suggested glowplug in the instructions.

Unsuitable fuel Do not use extremely high nitro or low oil fuel. Silencer is disconnected or has play Install silencer securely. Symptom Not reaching expected peak r. Cause Corrective action Set the needle only after warming up. Insufficient warming up or running-in.

Complete running-in. Silencer or manifold is not securely connected Check the connections and secure them. Fuel tubing from tank to is split or broken. Replace the tubing.

Incorrect carburetor settings Readjust low r. Recheck the throttle opening against Inaccurate linkage the pith angle. Symptom Poor r. Incorrect carburetor fitting Fit carburetor securely. Needle-valve closed too far. Open needle-valve slightly 31 M3x15 No. Code No. Bore Power output 1. Weight g Engines Mfg. All rights reserved. Printed in Japan. Stroke Practical R. Power output 1. Power output 2. Weight 4- 4. This manual is also suitable for: Maxfx ring Maxfx Maxfx Maxfx.

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