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YS120SR Helicopter Engine
There are many people complaining about vibration and diffic ..
5 of 5 Stars!
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  Top » Catalog » Engines & Parts » YS 120SR/120SRX and PARTS » YS0076 » Reviews
YS120SR Helicopter Engine
[YS0076]
 $469.99 
by Sebouh Babahekian Date Added: Sunday 23 March, 2014
There are many people complaining about vibration and difficulty in adjusting. I am using the 120 with 30% and 90 muffler. I find it smooth extremely powerfully and easy to tune. The trick was adding an additional shim under the head.

Rating: 5 of 5 Stars! [5 of 5 Stars!]
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