99WR400 in need of new head

5 replies to this topic
  • VprDrvr

Posted March 14, 2004 - 01:48 PM


My 99 WR400 is in need of a new head. Anyone have parts from a WR400, WR426, YZ400, or YZ426? I'm told the head is interchangeable.
Thanks for your help.
I posted this in the for-sale forum as well, but thought I might have better results here. Anyone ever get any repair work on the cylinder head? Thanks,

  • Eddie Sisneros

Posted March 14, 2004 - 01:50 PM


send it to edco.they can fix most anything.


  • PumpkinHumper

Posted March 15, 2004 - 03:40 AM


send it to edco.they can fix most anything.


Good advise!! check them out. They fixed my cam journals for less than $100.

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  • R_Little

Posted March 15, 2004 - 05:19 AM


My head just came back from ED. Work is great.

He opened intake cam journals.
Valve job.
Cleaned ports.

Other than the fact that it took a while and the exhaust valves were set .03 loose, a good experience.

My compression is way up and the bike runs great. I'm reluctant to change to YZ timing now. It explodes off the bottom. Lean back in 4th, grap a hanfull and straight up she goes!!


  • x2smoker

Posted March 15, 2004 - 08:44 AM


Just got mine back from Edco as well. They turned it in less than a week. I didn't think it was repairable because a broken valve did alot of damage, but it looks real nice. I haven't got it going yet because I discovered the cylinder was damaged as well, got one on order. However, I anticipate that the head will perform well.


  • VprDrvr

Posted March 18, 2004 - 05:52 AM


I think I'll go this route and try to get it fixed. Thanks for the info.


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