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05-02-2010 09:37 PM  8 years agoPost 1
junkpilot

rrVeteran

Alamogordo N.M.

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What is the gear ratio used on the four stroke Min. Airs.? What pinion is used? Was there ever a fourstroke 1004?
I have a YS 91 AC that was used in a TSK till the clutch burned off and would like to keep flying it. I have eleven 1004s and if I could make one into a fourstroke without too much effort I will do it.
Junkpilot

When you fly JUNK it's hard to tell when you've crashed!

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05-02-2010 10:44 PM  8 years agoPost 2
GM1

rrElite Veteran

Tallahassee, Florida US

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Gear ratio
I ran a 4 Stroke SE for a couple of years on a 7.5 gear, 12/90. Stock I believe was 7.33, 12/88.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.

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05-02-2010 11:21 PM  8 years agoPost 3
Four Stroker

rrElite Veteran

Atlanta

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You could put a new YS 115S into an old MA four stroke. Same size.

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