Are hd valve springs needed

2 replies to this topic
  • raptorgabe

Posted February 28, 2014 - 10:25 PM


Are some hd valve springs needed for stage 1 hotcams on a 11 yz450 ! Any help is appreciated thanks ! Just don't want to
Screw up
The motor

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  • camman

Posted March 03, 2014 - 06:17 AM


No they are not needed. Waste of money. HC are designed inside the stock spring envelope.

  • raptorgabe

Posted March 06, 2014 - 11:38 AM


awesome thanks man

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