summit 800 jetting?????

[dieselnomad]

I have a 2002 summit 800, usually ride between 2500 and 4500 feet and in temps of -10 to -25. carbs currently have 500 main jets installed and machine is bone stock. it is running to rich and looking to see if any one has changed there jets for similar riding as my own.

 

[bellie]

i have 480 mains looks ok at -20,has a can on thats it,was at 490 mains bit fat

 

[mtm]

Mine was a bit fat at high alt. it had 500s in it. I went to 490s haven't tried it yet. Should know after this weekend.

 

[mtm]

With the 490s it runs crisp and strong. went down to #3 on my clickers and still pull full RPM.