FIALA MOTORS Valach Motors VM R5-250 Manual - Halaman 3

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

1. Motor aplication

Motors VM R5-250, VM R5-420 a VM R7-800 are 4-stroke gasoline motor with volume 250, 420 and

800 ccm and are designed for use in model aircraft. They are not designed or recommended for any

other use.

They are a 4-stroke motor with OHV and 2 valves per cylinder. Microprocessor ignition for easy

starting and smooth running in all modes of engine speed. Dimensions and more information you can

also see on our web www.fialaprop.com

On FB Fiala Prop and You Tube channel Fiala Prop you can see many informations including video

manual how to start 4-stroke motors VM / FM, which is different from similiar 2-stroke motor

starting.

The Common instructions for the FM / VM 4-stroke engines,

cyl. and 7-cyl. petrol engines FM / VM, PowerFuel RX electric fuel pump Fiala is

this manual.

Use unleaded gasoline with a minimum octane 95 mixed with synthetic oil designed for two-stroke

engines.

For running we recommend 1:25, after running 1:30. Run-in should take about 2 hours of operation.

We recommend Valvoline oil - SynPower 2T - Full Synthetic, Mobil 1 - Racing 2T - Full Synthetic or

Repsol - Moto2T Racing. If you are not sure about the suitability of oil, which is going to use, contact

authorized service center or the manufacturer directly.

For these motors we recomended following Fiala propellers:

VM R5 - 250 – 2-blade : 32/20; 34/16; 34/18

3-blade: 30/18

VM R5 – 420 – 2-blade: 38/24; 40/20; 42/20

3-blade: 38/20; 40/20

VM R7 – 800 – 2-blade: 48/22 – 59/20

3-blade: 45/24 - 50/20

Best results you get with Fiala propellers.

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

www.fialaprop.com

Attachement to manuals for radial 5-

also annexed to

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