3 replies to this topic
  • SCJR

Posted July 23, 2003 - 06:10 PM


I own a 03 WR450F. Got rid of all stock governors and upgraded to a GYT-R titanium header and exhaust. The bike is pretty darn fast. However, being addicted to speed and power, I'm considering the YZF timing. Will it make a BIG difference overall? What can I expect to gain/loose? Would very much appreciate your opinions, Thanks to all! :)

  • Randy

Posted July 27, 2003 - 03:39 AM


I am looking to do the same thing, will the YZ 450 cams work for the WR, and what will it do for the performance ? Anybody want to answer this one ? :)

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  • simon@vic

Posted July 27, 2003 - 08:52 AM


you will loose bottem end if you yz time it.

you wil need to buy the YZ exaust cam and retard the stock wr cam one tooth.

  • Indy_WR450

Posted July 27, 2003 - 02:29 PM


You can not retard the WR450 cam like the 426 and 400 due to the auto decompression feature. New cam is about $160. :)


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