InstantForum.NET v4.1.3Burris Racinghttp://test.burrisracing.com/support/forum/administrator@burrisracing.comWed, 20 Aug 2008 12:48:52 GMT20http://test.burrisracing.com/support/forum/Topic8-6-1.aspx<BR><P class=MsoNormal style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align=center><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><FONT face="Comic Sans MS">New XR YF200 Valve Springs<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><FONT face="Comic Sans MS">Burris now has replacement valve springs for the Yamaha YF200 R1. They are made by the same company whose valve springs are the choice of most top NASCAR and NHRA engine builders. These are made from heat treated, x-rayed and shot peened alloy steel wire and have much higher duty cycle life than other after market or OEM springs. In addition to their longer life they are progressively wound which allows for low seat pressures and higher open pressures (approx 15%) than symmetrically wound springs and also the progressive springs reduces destructive high rpm valve spring harmonics as well.<o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><FONT face="Comic Sans MS">The main advantages over the OEM springs are longer service life and increased valve train stability at high rpm’s in unrestricted engines while giving longer life in the lower rpm restricted engines.<o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p><FONT face="Comic Sans MS"> </FONT></o:p></SPAN></P><P class=MsoNormal style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align=center><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><FONT face="Comic Sans MS">OEM Red Exhaust Spring Pt#F21-405-00<o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align=center><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><FONT face="Comic Sans MS">XR Orange Exhaust Spring Pt# F21-405-10<o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align=center><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><FONT face="Comic Sans MS">OEM Blue Intake Spring Pt# F21-405-01<o:p></o:p></FONT></SPAN></P><P class=MsoNormal style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align=center><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><FONT face="Comic Sans MS">XR White Intake Spring Pt# F21-405-11<o:p></o:p></FONT></SPAN></P><P><BR><BR><IMG src="http://test.burrisracing.com/support/forum/Uploads/Images/9a6f5aa5-f3fb-4706-9e6a-d189.jpg"></P><P><IMG src="http://test.burrisracing.com/support/forum/Uploads/Images/56b02ed1-1907-4595-939a-8b00.jpg">Wed, 04 May 2005 08:39:21 GMTBurris Tech Info