I have a 2005 Rincon 650 I will be using on a elk hunting trip in a couple of weeks. Here in Minn, our elevation is around 1100 feet. We will be hunting in elevations approx. 6000. Do I need a different jet, and if so which size is recommended? Thanks

 

I personally would not mess with it. Sure you'll run a bit rich but nothing drastic. It's more than likely going to be a bit colder up there also so you if you go a bit rich so much the better.
Just go kill somthing and don't worry about the quad!!! [img]i/expressions/face-icon-small-smile.gif[/img]

 

A typical mountain ride for me starts at ~4,000' in the valley, then can go up to ~11,000'....all in one day ride.

http://www.thunderproducts.com/tpi_valve.htm


I have two Thunder TPI valves installed in the airbox lid. As I ascend in altitude, I open the valves for more air intake (to compensate for the less dense air), and then as a descend, I close them again. Above 9,000', I just remove the lid altogether.

This is a system that works surprisingly well! It is like doing a rejet, only instead of decreasing the amount of fuel, you are increasing the amount of air...has the same effect. The valves are very inexpensive.

The one drawback is that the lid won't be airtight anymore for stream crossings. Lids are cheap, so if I am expecting any unusually deep crossings, I just carry an intact lid along and change the lids out for those places.