ys engines difference ??

[John Ferrell]

I will add the SC has a bad reputation. Most were nothing but greif. Some 
ran fine. Some were fixed by installing the whole back plate carb assembly 
from an NC. I could never get the mixture right and stable on mine. 
Deadsticks fat & lean. Back fires on the ground and in flight. That made 
life very hard on the airframe.

I did buy one at a swap meet earlier this year for $100. Most likely it will 
not be used without at least a carb change.

John Ferrell
http://DixieNC.US

----- Original Message ----- 
From: "Bob Kane" <getterflash at yahoo.com>
To: <discussion at nsrca.org>
Sent: Thursday, June 02, 2005 7:20 AM
Subject: Re: ys engines difference ??


>I have direct experience with the FZ and NC. The 120FZ
> was the last 120 size motor and probably the best of
> the batch. Good power, easy to tune. The NC does not
> have a low-end fuel mixture adjustment. I had no luck
> with mine, would run all day on the bench but quit in
> the air with symptoms of a rich midrange. Two trips
> back to YS could not fix it. I would avoid the NC. I
> never owned an SC, I have heard mixed comments about
> it. Great power, but unforgiving.
>
>
> The 91FZ has an updated carburetor and muffler, the
> other parts are the same as the AC.
>
> --- 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
>> =================================================
>> To access the email archives for this list, go to
>> http://lists.f3a.us/pipermail/nsrca-discussion/
>> To be removed from this list, go to
>> http://www.nsrca.org/discussionA.htm
>> and follow the instructions.
>>
>> List members email returned for mailbox full will be
>> removed from the list.
>>
>>
>
>
> Bob Kane
> getterflash at yahoo.com
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> =================================================
> To access the email archives for this list, go to
> http://lists.f3a.us/pipermail/nsrca-discussion/
> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> and follow the instructions.
>
> List members email returned for mailbox full will be removed from the 
> list.
> 


=================================================
To access the email archives for this list, go to
http://lists.f3a.us/pipermail/nsrca-discussion/
To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.

List members email returned for mailbox full will be removed from the list.