another WR450 jetting question


1 reply to this topic
  • charliep

Posted January 15, 2006 - 05:54 PM

#1

I also posted in jetting forum, but:

My friend and I have identical 05 WR450's. All the free mods, side of airbox opened up and PMB silent insert.

I am running Indy's kit 168 main red #5, 48 pilot, 1.5 turns out,40 leak 72 starter.

He runs #160 main,NDJN needle #4, 42 pilot, 2 turns, leak plugged, 72 starter. He changed to a 100 pilot air jet, and reversed ACV diaphram.

Both bikes run great from sea level to 4,000 ft, California 60 to 80 degrees. No bog, no problems.

What's the deal? I would have thought with the WR running lean stock, that his jetting would lean the bike even more.

Anyone have any thoughts. thanks

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  • Matty05

Posted January 16, 2006 - 03:15 AM

#2

It is the ACV, screws around our jetting. YZ's don't have it and run basically the same jetting as your mate.
It seems like a great idea. I was as confused as you on this very topic, I still would like
to try it out sometime when I could be bothered playing around with jetting.




 
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