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ys 60 fr

Old 09-17-2010, 11:46 AM
  #1  
daggets
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Default ys 60 fr

i ve found a "brand new" never used ys 60 fr on a famous site, to be used on a classic pattern plane...
i ve used an os 8 glow plug and a 5 per cent nitro fuel....
as long as the battery is clamped on the plug, the engine runs... perfect, at all rpm...
but, as soon as i disconnect the battery, the engine runs too rich and stall....
i ve tried with 3 new plugs, still the same, and the glow plug has been worn...
so, is anybody knows what combination of fuel and plug do i need?
i ve searched everywhere on internet, and did not find something clear....
The user notice from ys itself recommend to use "the proper fuel and plug", with no other advice...
thanks a lot to everybody!!
Old 09-17-2010, 12:25 PM
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Konrad
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Default RE: ys 60 fr

Will she lean out with the glow plug lit?
If so your fuel is old. Get some good fuel with 100% oil castor. The YS used an ABN P&L and as such need all the protection that 100% castor affords. I ran my YS short stroke 60 on 11x 7 to 11x 8 props on a full wave pipe with 5% nitro fuel.
for plug selection look here,
http://www.modeltechnics.com/glowplug/firepower.html.

!!!DO NOT USE PETROLEUM BASED AFTER RUN OILS!!!!

All the best,
Old 09-19-2010, 03:59 AM
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daggets
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Default RE: ys 60 fr

and the solution is..... 25% nitrométhane.... runs perfect since that... i will keep it in mind, many of my engine has mid range problems, now, i know...
Old 09-19-2010, 04:21 AM
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Konrad
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Default RE: ys 60 fr

Thanks for posting your solution. Can you post our set up; prop, pipe and pipe length?

All the best,

Konrad
Old 09-19-2010, 08:08 AM
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daggets
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Default RE: ys 60 fr

prop 11-7 apc, pipe macs and lenght according to http://www.macspro.com/tuning.asp

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