ys 91

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08-07-2003 | 11:26 AM

jody-RCU

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From: beulaville, NC

ys 91

Im thinking of purchasing a ys engine .What is the difference between a ac91 & fz91? Also how would either of these pull a 7.5lb plane.(ucando 60)?

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08-07-2003 | 12:15 PM

Dave Shadel

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From: Gardnerville, NV

ys 91

The FZ was the last version, both have been discontinued. Buy the new 1.10, more power, same size.

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