MDS 1.48 FS Pro Ring Page 3 Operating Instructions Manual Download

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Step 1. Assembly

Inside the MDS engine box you should find the following items:

1. Engine
2. Aeromix

™

carburetor with O-rings (may be pre-installed)

3. Muffler (style may vary depending on engine)
4. Complete accessory and tool set with muffler mounting

hardware (included tools may vary with different engines)

• Instructions and warranty card

To assemble your new engine, please follow these simple steps:

Step 1A.

Note: Refer to the exploded view of the engine on the last page to
identify the parts discussed in the text.

Photo 1

MDS instruction manual 5x6.5 4/28/00 3:09 PM Page 3

Summary of Contents for 1.48 FS Pro Ring

Page 1: ...Engine Operating Instructions Pro Series...

Page 2: ...re precision machines and should be handled with care The following information and recommendations are presented to help you become more familiar with the operating characteristics of your new MDS en...

Page 3: ...vary depending on engine 4 Complete accessory and tool set with muffler mounting hardware included tools may vary with different engines Instructions and warranty card To assemble your new engine plea...

Page 4: ...ur finger Next remove the tools from their protective wrapper You will need the Allen wrench to tighten the carburetor retainer As noted above some engines come with the carburetor already mounted VER...

Page 5: ...aircraft or heli With today s tolerances and available metallurgy the break in time has been shortened to the point that bench running is not necessary If you re not sure whether your engine is ringed...

Page 6: ...er Also the time involved is shorter most ABC engines can be fully broken in within 3 or 4 flights at a slightly rich setting Step 2A Muffler Mounting Remove the muffler from the plastic bag The muffl...

Page 7: ...prop Remember to inspect the prop thoroughly for any nicks or signs of fatigue which can lead to prop failure 7 Engine Recommended Propeller Sizes 18 FS Pro 7 x 4 7 x 6 Break in 8 x 4 8 x 5 28 FS Pro...

Page 8: ...ressure nipple 3 Turn the high speed needle clockwise until you feel a slight resistance This closes the needle valve completely 4 Now turn the high speed needle counterclockwise a total of 21 2 turns...

Page 9: ...ller through a complete compression cycle by hand without glow plug battery attached without feeling a heavy resistance to this action a sign the engine is flooded Only then should you attempt to star...

Page 10: ...ng the high speed needle When you have achieved the proper high speed setting running slightly rich idle the engine and pinch the fuel line with your fingers at the fuel inlet of the carburetor If the...

Page 11: ...he engine will leak air and may repeatedly run lean Step 4 Engine Care Fuel Always use clean fresh fuel Because dirt is the number one enemy of any engine we highly recommend the use of an in line fue...

Page 12: ...our MDS engine comes complete with a long reach glow plug with idle bar These plugs are designed for break in only and it s common for these plugs to burn out within several runs of the engine Their u...

Page 13: ...reat deal of harm You need twice as much exhaust area as intake area to provide airflow for your enclosed engine Step 5 MDS Safety Instructions and Warnings See the enclosed safety instruction card fo...

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Page 18: ...47 77 92 1 4 x 28 35 3 40 FS 1 36 44 17 5 51 87 110 1 4 x 28 37 3 48 FS Pro 36 44 17 5 51 87 115 1 4 x 28 37 3 58 FS Pro 36 44 17 5 55 94 115 1 4 x 28 42 3 68 FS Pro 40 52 25 55 100 120 5 16 x 24 42 4...

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Page 20: ...20 MDSMAN3 Version 1 4 5 x 6 5...