U2leight

Member
Nov 25, 2000
85
0
Nobody is responding because there are so many threads on this previously, but I will save you the search. BTW I am racing in Mesquite this weekend if you happen to be going there. Don't cut your slide for this setup or it won't work.
30 pilot, S-4 Nozzle from Tom Morgan racing in Havasu. and 430 main, needle 2nd clip.
Everything else is stock, it rips and runs clean. I raced all summer in 110 degrees @ 1800ft ran perfect. When I went to higher elevation (5000) I just put my stock 420 main in and ran great.
We used this setup on at least 10 CR's here and every body had great results!
 

Nevada426

Member
Sep 6, 2001
2
0
I ride a 01' CR500 with FMF Gnarly pipe and Power Core II silencer, and I run the stock jetting. I use Trick gas (100 octane) with Golden Spectro 32:1. My bike runs perfect, never fouled a plug and instant power the second I need it. One funny thing is my plugs are usually a little oily and dark which would indicate a rich condition.
 
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