ys engines difference ??

[Bill Glaze]

The 1.20 SC I had ran great for a year.  Then, something happened; I 
never knew what.  Neither did the factory.  After numerous trips back 
and forth that didn't help, I finally traded it in to Y.S. for a 1.40 
FZ.  End of problems.  Other than that, I've used the .53, 1.40 FZ, 
(good engine) and the 1.40 L, (more demanding to operate)and the 1.20 
SF, (great, trouble free engine.)

Bill Glaze

proesco at decoarq.com wrote:

>what is the difference and what is better :
>ys 120 FZ , ys 120 NC , ys 120 SC ???
>
>why the ys 91 fz has the AC Crankcase inscription ??
>
>thanks
>francisco
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