wr 400 cam mods


3 replies to this topic
  • Bshaips

Posted August 03, 2007 - 08:51 AM

#1

i know there is tons of threads about how to make to my wr400 run like a yz by advancing one of the cams. if anyone knows or has the info and you could please share that would be great. Thanks

  • SXP

Posted August 03, 2007 - 10:51 AM

#2

i know there is tons of threads about how to make to my wr400 run like a yz by advancing one of the cams. if anyone knows or has the info and you could please share that would be great. Thanks


Go here http://motoman393.thumpertalk.com/ and look under Tech Articles/Engine/Changing a WR's cam timing to YZ timing

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  • Birdy426

Posted August 05, 2007 - 01:01 PM

#3

You might want to think about installing an 03 YZ cam to get YZ timing AND autodecompression.

  • ncampion

Posted August 06, 2007 - 06:27 AM

#4

Ditto to what Birddy says, the 03 YZ cam is the way to go, it's a drop in, just need to re-shim the valves.




 
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