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Manual for motor FM_VM R5_R7 ( Date of publication 01/2018)

 

 

FIALA PROP s.r.o,  Vysoká 56,  75641 LEŠNÁ ,  Czech Republic , e-mail: [email protected] 
www.fialaprop.com

  

Page 1 

 

         

                                        

 

 

 

  

     

 

 

 

   250 R5 

 

 

 

420 R5  

 

    800 R7 

Volume: 250 ccm 

 

 

Volume: 420 ccm 

   Volume: 800 ccm 

Bore: 42 mm   

 

 

Bore: 47 mm   

   Bore: 52 mm 

Stroke: 32 mm 

 

 

Stroke: 48,5 mm 

   Stroke: 52 mm 

Weight: 5,6 kg  

 

 

Weight: 11,8 kg 

   Weight: 28,2 kg 

 

Manual for radial motors  VM R5-250, R5-420, R7-800 produced by  
Fiala Prop, s.r.o. company 

 

Safety instructions. 

It is imperative that you read before handling and using the motor this notice and study 
the motor manual. If you not find answers to your questions, consult with a more 
experienced colleague, contact your dealer engine or contact the manufacturer directly. 

Remember that engine, what you bought is not a toy and is designed only to drive the 
airplane models under the terms of the instructions for assembly and use. In the case of 
our products, it is a  big volume motors and performance, thus this requirement is more 
important. 

Summary of Contents for Valach Motors VM R5-250

Page 1: ...0 R7 800 produced by Fiala Prop s r o company Safety instructions It is imperative that you read before handling and using the motor this notice and study the motor manual If you not find answers to your questions consult with a more experienced colleague contact your dealer engine or contact the manufacturer directly Remember that engine what you bought is not a toy and is designed only to drive ...

Page 2: ...or pull from model no matter how well done by you and even fatally injure persons standing nearby Do not attempt to repair a damaged propeller it is very dangerous and it always prefer to immediately replace for the same type and parameters Use a good quality propeller manufacturers designed for petrol motors We recommend using propellers Fiala which is developed and produced by ourselves Do not s...

Page 3: ...which is different from similiar 2 stroke motor starting The Common instructions for the FM VM 4 stroke engines Attachement to manuals for radial 5 cyl and 7 cyl petrol engines FM VM PowerFuel RX electric fuel pump Fiala is also annexed to this manual 3 Fuel Use unleaded gasoline with a minimum octane 95 mixed with synthetic oil designed for two stroke engines For running we recommend 1 25 after r...

Page 4: ...se testing stand do not screw the engine hard for example on a steel weldment but always use at least a wooden board etc but not the silentblocks Connect the ignition source 4 8 9V min capacity of 1500 mAh Connect the fuel tank Make sure that the ignition is switched off close the choke 5 6 x crank the motor in order to suck fuel open the choke adjust slightly increased idle speed cca 10 turn on t...

Page 5: ...ted on a specific motor turn the ignition start the motor If a situation arises that the engine will not start there was either a glut motor fuel or vice versa engine is lean Because these conditions can be difficult to detect we recommend the following procedure check the fuel system leaks throughput level of fuel etc make sure that the ignition is switched off set full throttle 10 x spin the mot...

Page 6: ... keep a constant speed but motor flush with the occasional addition slow down the gas This mode observe about the first 30 minutes of operation After a short time you can gradually increase the speed up to higher allowed RPM Total time of run is about 2 hours 8 Install the motor inside the model When thinking about the placement of the engine into the model keep in mind that it is absolutely neces...

Page 7: ... of the battery for the ignition is checked Check spark plugs as needed we recommend it after approx 10 hours of operation Spark plug for the VM 250 R5 is NGK CM 6 for the VM 420 R5 is NGK CM 6 and the VM R7 800 is used with the DENSO W 14MPR U10 the M14x1 25 thread electrode distance 0 4mm or the Bosch CM 6RO 088 thread M14x1 25 electrode distance 0 4mm or NGK BPMR7A thread M14x1 25 The numbering...

Page 8: ...e again The following pictures will tell you more We set the cylinder in front of and behind the cutting machine 10 2 Lubrication rockers Always when checking adjusting valve lash perform simultaneously lubricate the rocker We recommend oil Motul Chain lube Off road or similar quality oil for lubrication of motorcycle chains with temperature determining to 150 C How and where to apply grease is se...

Page 9: ...he highest speed and the L needle on the other hand affects low speeds and transitions up to medium speeds The basic setting of the two needles is 2 revolutions calculated from the tightened needle Fine tuning and tuning of the engine should only be done after mounting into the model 12 List of common spare parts and accessories Find the www fialaprop com or to inform on e mail info fialaprop cz 1...

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