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HomeAircraftHelicopterHIROBOOther › EVO 90, put O.S. 91 SZ or the Y.S. 91 ST4. ?????
02-09-2006 10:39 PM  12 years agoPost 1
saitoflyer

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L.A. CA

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which one is better?? im not much of a 3d pilot, so what im looking for is not too much power but more of reliability and longevity. i want someonthing that starts up easily w/ least amount of needle adjustment. thanks. btw. which pipe is good for either one???

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02-09-2006 10:46 PM  12 years agoPost 2
RCtaz

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Leander, TX

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The YS is a tune it and forget it motor but if you dont pay attention to what your doing when you kill the motor it will be SOB to start back up. The OS starts easier and I have not had and trouble with mine tuning it in but they can be a pain keeping them tuned from time to time.

I run the MPII on both but if you have money burning hole in your pocket buy a Hatori for $150.

~Texas Renegade Rotorz~

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02-09-2006 10:57 PM  12 years agoPost 3
RCtaz

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Leander, TX

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One more thing on the YS you will need to get use changing out the rear bearing on it or upgrade to the ceramic one. with my last YS I got 4 gallons on the rear bearing. Just food for thought.

~Texas Renegade Rotorz~

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HomeAircraftHelicopterHIROBOOther › EVO 90, put O.S. 91 SZ or the Y.S. 91 ST4. ?????
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