Help tuning a YS 140

[Bill Glaze]

I don't know if this is helpful, or representative of the Y.S. breed, 
but my experience has been remarkably uniform with my Y.S. engines. 
(1-.53, 4- 1.40FZ's 2-1.20's and 1- 1.40L)  And that has been: main 
needle open 1-1/4 to 1-1/2 turns open.  Regulator: flush with CC 
housing.  Air valve: open 1-1/2 turns.
As I say, all my engines happen to be extremely uniform, in that these 
settings are just what seems to work best.  As they say, "Your Flight 
Time May Vary!" ;-)
HTH
Bill Glaze

bravo52 wrote:

> Just started tuning a new 140 (sport) and it hits all the numbers but 
> the needles seem a little off.  I'm at 8200 (backed off a few clicks) 
> on the high end and it idles at 2200.  Transition is smooth and if it 
> sits more than a minuete or so, it loads up.  I'm using an OS F plug 
> and 20/20 fuel.  The tank is plumbed per YS recommendations and I am 
> using a YS fuel filter.  Here is the "seemingly" odd part, the high 
> needle is one turn out, the regulator is 1.25 out and the idle is 1.25 
> out.  "Out" meaning screwed full in.  Any thoughts.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20050704/7cff9fd3/attachment.html