High Elevation Setup For 2010 IQr 600mods

[ProX440]

Heading Out West Come Feb. Need a good place to start for 7000-10,000ft. I am thinking we will most certainly need to pull weight away from the primary! Thinking 56g or 58g weights?, Team weights or BB's? Should we also lighten up the primary spring or leave the EPI gold spring(190/335) in? Jetting I am thinking down into the 330's-340's and leaner depending on temp after checking piston wash. Running 100-105octane fuel just to be safe since we will be making some longer pulls. Now for the fuel/air screw around 1.5 out??? Needle probably leave it at the 2nd clip down? Any and all suggestions will be GREATLY APPRECIATED!!!! Thanks

Casey

 

[Vaughny D]

Her is a link for 600 stock set up including high elevation. I run my 2011 stocker pretty close to the high elevation specs. I ride 8500ft. mostly.
I sometimes run my stock p.spring 165-310 Just depends on what rpm you want to engage at, I like the 140-330 spring also. 300 jets , 35 pilot, needle all the way down, 54g
http://www.jspowersports.com/polaris_iq_600r_trail_conversion.htm