Hi all, I'm new to this forum, but it seems really well organized, like the Ford Powerstroke site. I just purchased a new Prairie 650. I was out in Colorado hunting elk last year, had to do a lot of walking, mostly uphill, to get to our hunting areas as we were short a few horses. I'm in good shape, run marathons, but when I got back, my wife said I'm not getting any younger, and I should get an ATV to use while I am hunting to save myself a little effort. SO, naturally, I went out and bought one! Great wife, huh?

I only have 35 miles or so on the thing, but I love it, great ride and power. My question involves what I need to do to make the thing work in Colorado at altitude. My dealer here in Minnesota says he has customers that have taken theirs to 10,000 feet with no problems, so he says to not do anything, just use low range as I will lose some power, but that the 650 will have some to spare. Our camp last year was at 11,300 on my GPS, and we hunted up from there. I am concerned that the vehicle won't run right, but I don't really want to spend $160.00 or so to rejet and then have to spend it again to put the vehicle back to stock after a weeks hunting.

What are the experiences with a 650 Prairie at high altitude? Is rejetting necessary? If yes, can you just change the main jets? How hard is it, how much time does it take, and can I guy with lots of thumbs do it himself? What do jets cost, and how do I know which ones to change to for 10,000 to 12,500 feet? I really appreciate the information. Thanks.

Chieftam, New Prairie Owner to go along with the kids Bayou 220

 

Hi Chieftam,
I have had my 650 for a year now. Only once have I been to hi altitude with it. I have used it as delivered at altitudes close to 12,000 feet with satisfactory results.
This use was in the mountains surrounding Richfield, Utah. At around 10,000 feet and above there was a noticable loss of power and a little extra gasoline consumption. However, still had sufficient power for the trail riding I was doing. It is a great machine, except the drive belt/converter leaves a lot to be desired. I have had considerable trouble with belts wearing out and becoming too loose. I have a little less than 1500 miles on it and am on the second belt and second belt deflection adjustment. No help from Kawasaki.

GeeBee