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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks for this info </span></font><st1:City><st1:place><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Troy</span></font></st1:place></st1:City><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>. You
are a wealth of knowledge<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Peter<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma;mso-ansi-language:EN-US'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> </span></font><st1:PersonName><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:EN-US'>discussion-request@nsrca.org</span></font></st1:PersonName><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:EN-US'> [mailto:</span></font><st1:PersonName><font size=2
face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:EN-US'>discussion-request@nsrca.org</span></font></st1:PersonName><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:EN-US'>] <b><span style='font-weight:bold'>On Behalf Of </span></b></span></font><st1:PersonName><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:EN-US'>Troy Newman</span></font></st1:PersonName><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:EN-US'><br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, 8 February 2003
11:25 AM<br>
<b><span style='font-weight:bold'>To:</span></b> discussion<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: YS 140L pistons??</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>This mod was originally holes on
the top of the piston and extended down to the ring groove behind the
ring.....so that compression would cause the ring to push out and seal better
on the sleeve.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>This mod was done for the
140L's....It works on all the 140's same piston specs...even though there are
several different generations of the piston for the 140 they are all
interchangeable. The DZ piston is the best so far its very similar to the
original YS 120 piston in that has a full shirt and with some lightening hole
work done but nothing like the "L" piston. My suggestion to anyone
buying anew piston is to use the DZ piston....You won't get any of the rocking
issues on the previous and early versions of the "L" piston....<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>As for a performance increase with
the gas porting (groove or holes) its minor the big thing is that it helps save
the pistons....On the other hand the ring will not last as long...but a $20
ring is preferred over the price of a new piston every time....considering if
you replace the piston you're probably going to do the ring also and maybe even
the cylinder.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>I'm not sure if the DZ pistons
have it gas ported or not.....I know I have one that is and 2 pistons that are
not. The DZ piston is the fix for piston problems....If you want a little more
of your "L" try the DZ cam gear also.....It has a higher lift and
longer duration that the "L" cam gear.....changing the cam may make
the L a little more barky and give it a bit more kick but I'm sure it would
increase power.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>Troy Newman<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<blockquote style='border:none;border-left:solid black 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>----- Original Message -----<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt;background:#E4E4E4'><b><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black;font-weight:bold'>From:</span></font></b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>
PENNISI Peter<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>Sent:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Friday,
February 07, 2003 6:18 PM<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>To:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>
'discussion@nsrca.org'<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>Subject:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> YS 140L
pistons??<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'><br>
I believe there is a new style of piston available which has slots going<br>
from the piston face to the ring groove. From what I understand this aids in<br>
better dynamic compression.<br>
<br>
Has anyone used this piston in the YS140L?<br>
<br>
Is there any significant power increase?<br>
<br>
Thanks again<br>
<br>
Peter<br>
<br>
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