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Ripmax RMX Instruction Manual

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I N S T R U C T I O N M A N U A L
For your safety please read the following instruction
manual carefully before running your engine
www.ripmax.com
Published and distributed by: Ripmax Ltd,
Ripmax Corner, Green Street, Enfield EN3 7SJ
Tel: 020 8282 7500

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  • Page 1 I N S T R U C T I O N M A N U A L For your safety please read the following instruction manual carefully before running your engine www.ripmax.com Published and distributed by: Ripmax Ltd, Ripmax Corner, Green Street, Enfield EN3 7SJ Tel: 020 8282 7500...

  • Page 2: Important - Safety Instructions And Warnings

    Always ensure your engine is properly maintained and treated with the utmost respect during operation. If you are in any doubt with regard to any point in these instructions or with the operation of your engine contact Ripmax Ltd or your local distributor.

  • Page 3: Important Notice

    IMPORTANT NOTICE: Ripmax Ltd and its distributors do not accept any responsibility for injury, damage or loss that may arise from the use or misuse of this engine or any part of it. Neither do they accept any responsibility for damage or injury arising as a consequence of non observance of the instructions and procedures laid out in these instructions or any supplementary instructions supplied.
  • Page 4 Next push down firmly on the carburettor Once the carburettor is seated and CARBURETTOR WITH INTEGRATED to seat it and compress the O-ring. Any aligned correctly, keeping pressure on it, NEEDLE VALVE. gap will allow air to leak in and affect tighten the pinch-bolt securely.
  • Page 5 CARBURETTOR PLUG UPPER BOLTS CARBURETTOR RNV at PLUG 90° 2.2. Remove the two upper bolts from the REMOTE NEEDLE VALVE (RNV). FITTING. Some engines come with a remote needle Carry out steps 1.1~1.3 as per the back plate and attach the completed RNV valve unit (4).

  • Page 6: Engine Installation

    If, due to vibration, the silencer bolts come loose, a small amount of threadlock can be used to secure them. Use Threadlock NOT Studlock (Grip Thread-Lock Item No. S-RA20). Your RMX engine is now ready to be run.
  • Page 7 6. GLOW PLUG SELECTION Your RMX engine is supplied without a glow plug. For best results, choose a long reach plug that has a medium heat range, such as an Enya No.3 (Item No: L-EP03) or FirePower No.5 (Item No: L-FP05). These plugs are designed for general use (both ABC & Ringed engines) and should provide you with a quick start, reliable idle and a smooth pick up.

  • Page 8: Propeller Selection

    Ask your dealer or a local heli club/flyer for assistance. If in any 10x5 - Break-in doubt ring Ripmax Technical Department for assistance. 10x6 IMPORTANT: Prior to installation, it is extremely important to make sure the propeller is balanced.

  • Page 9: Throttle Linkage

    11. BREAK-IN PROCEDURES Prior to running your new RMX ringed or ABC engine for the first time, it is important you understand the break-in procedure for your type of engine. The purpose of ‘break-in’ is to achieve the proper seating between the cylinder sleeve and the piston or piston/ring.

  • Page 10: Starting Procedure

    NOTE: When turning over an ABC engine it will be very tight at the Top Dead Centre (TDC). It may even click/squeak as it goes over centre. This is normal. The tightness creates a good seal between the piston and liner and is necessary for correct operation. 11.1 RINGED ENGINE BREAK-IN Excessive heat build up during the first few runs can damage the ring and cylinder.
  • Page 11 12.3 Turn the Main/High-speed needle valve (5) clockwise until you feel a slight resistance. This closes the needle valve completely. DO NOT force the needle tightly closed. 12.4 Next open the main needle (5), anti-clockwise, a total of 2~2.5 turns. This will allow the engine to start and run. 12.5 Push the throttle arm to the fully open position or open the throttle on the transmitter.
  • Page 12 12.9 TAKE CARE – Once the engine has started be extra careful to avoid the rotating propeller especially when tuning the engine in the next section. Allow the running engine to warm up for about 1 minute, then smoothly open the throttle to full power – it may cough, splutter and run roughly.
  • Page 13 If in doubt run the engine richer than you think is necessary to be safe. Run the engine at this rich setting for a least 2 tank fulls. After this the engine can be leaned out progressively each tank full, a few clicks at a time, until maximum power is achieved. Keep in mind at all times that a very lean setting can damage the ring and cylinder.
  • Page 14 CAUTION DO NOT dismantle your RMX engine unnecessarily. Doing so may cause damage to the precision fit of parts such as the piston, liner and carburettor If it is necessary to clean the interior of the engine (such as after a crash), only remove the silencer, carburettor, cylinder head and backplate.

  • Page 15: Spare Parts & Service

    SPARE PARTS & SERVICE UK- RMX Spare Parts are available from your local model shop. In case of difficulty, please contact the Ripmax ESD (Express Service Delivery) on 020 8282 7515 for direct delivery (Spare Parts only). For Engine Service or Repair please return to Ripmax Ltd at the UK address below.
  • Page 16 RMX Engine Parts Diagram Please retain this information for future reference www.ripmax.com Ripmax Ltd, Ripmax Corner, Green Street, Enfield EN3 7SJ...

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