A couple questions

4 replies to this topic
  • *mike68*

Posted August 22, 2001 - 09:50 PM


First I will give you my bike status.
Throttle stop cut
Air box lid
Custon vortip, opened to 1"
14-52 gearing.
Grey wire cut

I tried YZ timing before the grey wire got cut and wans't happy with the low end, so I changed it back. I did nothin else. I am thinking of trying it again now that the wire is cut. I noticed some change with the wire cut and was thinking that the YZ timing may be better now that the wire is cut. Just looking for thoughts on this. I was also wondering if I should have adjusted the needle clip location when I did the YZ timing.

maybe I should just leave it alone.

  • tbronco

Posted August 22, 2001 - 03:59 PM


Hi, Mike.

Have you experimented with the jetting?

Also, if you use the stock head pipe, check the weld between the flange & the pipe. Mine was built up 1/8"+ all the way around. A die grinder got rid of that.

I'm also running the vortip, though a little less modified than yours. It's just strange that it takes away bottom/mid but pulls strong on top while restricting flow.

I'm hoping I can jet the bottom back in. I'm just really slow.

I'm currently at: DVP#4, 175 main, 45 pilot (too lean, soon to be 48), vortip with tube ends thinned & flared, YZ cam timed, airbox lid gone, octopus retained, gray wire pulled. @ 1000-3000 ft.

This summer I've committed myself to riding w/vortip. The power was perfect without, but just too darn loud.

98 WR400 Dualsport!

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  • tripm

Posted August 23, 2001 - 02:46 PM



I think you should fix it by purchasing a 520 ;-)

Seriously, why would you change anything on that bike? The power always seemed perfect to me.....

  • *mike68*

Posted August 24, 2001 - 05:05 AM


I won't do anything that involves jetting. Thats a promise. I was just curious about the effect the grey wire has with the YZ timing. Riding sunday early am if you are interested. Are you going to the VT turkey run??

  • tripm

Posted August 24, 2001 - 06:59 AM


Yup. Turkey run it is.


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