re ys 1.20

[Bill Glaze]

The Y.S. 1.20SC was an absolute struggle for the second year I owned
it.  First year, it was great.  Neither the factory or I, or several
real Y.S. experts could get it right Finally traded it in for a 1.40 FZ.

I now own 4 of them.(1.4FZ's)
The original 1.20 FS is one of the best engines I have ever owned; I
still have 2 of them, and use them regularly.  Will be putting one of
the1.20's in a new Swallow I got from Ron van Putte.
A pattern flyer friend (and TOC competitor) has run 130 gallons of fuel
through his 1.20 FS with no problems. (And that was at last count!)
Probably a record of some sort.
No experience with the newer 1.20's or the DZ.  My 1.40L has started out
like the 1.20SC revisited.  We'll see.

Bill Glaze


"Thomas C. Weedon" wrote:

>  Hey, Bob, I will have to agree with most of your conclusions except
> the 120NC. I have two 120NC's. They are not as powerful as the newer
> models, but they are easy to run and so far, very reliable. I have
> only done the minimum maintenance on then. Great for sport engines. I
> got rid of my SC's. They were the worst of all YS engines. I also
> agree that the YS120FZ will suprise most with it's power and ease of
> use. I have 2 of them and won't give them up. The 140FZ is great
> also.Tom Weedon
>
>      -----Original Message-----
>      From: discussion-request at nsrca.org
>      [mailto:discussion-request at nsrca.org]On Behalf Of Bob Kane
>      Sent: Saturday, May 17, 2003 3:58 PM
>      To: discussion at nsrca.org
>      Subject: Re: re ys 1.20
>
>      Best to worst big YS four strokes IMHO, in terms of
>      reliability and ease of use: YS120FZ
>      YS140FZYS120ACYS120FSYS140L  YS140DZYS120SCYS120NC I own or
>      have owned the 120NC, 120FZ and 140FZ motors, and have
>      direct experience with the L and DZ series. Of the 120's,
>      the FZ is the best version. My 120FZ is as strong as my
>      140FZ's. The 120NC I owned was junk, even two trips back to
>      YS and several versions of throttle barrels did not make it
>      right. Some people have good luck with them, I did not. The
>      AC is good, but not as powerful and heavier. The SC is
>      powerful, but has a tendency to eat itself without warning.
>      The older FS motors are good, just not on par with the newer
>      ones in terms of power. If you are shopping, pick up either
>      a 120FZ or 140FZ. Lots of fliers are moving to the big
>      two-strokes or YS140DZ's, so finding one should be
>      relatively easy.
>      S & A North <sanorth at shaw.ca> wrote:
>
>           HI   any chance someone could list in order best
>           to worst version of ys 1.20 to buy.i do not know
>           the diff between a nc fs fz.can anyone enlighten
>           me please?thanks.........shel
>
>      Bob Kane
>      getterflash at yahoo.com
>
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>
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