I have a 04 Renegade 600 HO DPM which I just love. The 600 HO is more power then I need with an exception of 80+ (tops out maybe 93+). Anyways I like acceleration and not much for high speed gambles so the engine feels great to me. Well this all being said for Midwest altitudes.

I planned a trip to Colorado so I talked to my dealer about adjustments. He said Ski-doo recommended hollow pins and nothing for the carbs due to DPM. He made a comment suggesting one should still rejet the carbs for best performance. Does anyone know if this is true with DPM? He said by rejetting for the altitude the DPM would only have to make mirror adjustments for temporary altitude and temp changes. DPM would not have to compensate as much if the carbs were jetted correctly? Curious what other know about this??


Anyways I swapped my primary pins to the hollow pins and adjusted my clickers as recommended for 10000+ feet. At 10k ft she seems to pull very hard between 20-60mph, the rpms on the trail were peaking at about 8200. However when I would get in the deep stuff, especially highmarking, she would really struggle to reach 7800 and sometimes maybe only 7600. At lower speeds she will climb right to 8000. Backshifting seems to be fast and accurate and engagement feels good so I am wondering about DPM and carb adjustments. If I can tune these in and I feel I need more power I may then play with a sprocket size adjustment.

Also a friend of mine swears DPM cannot make all the adjustments necessary. He says there are low, mid, and high range adjustments and even by only changing the main jet this only adjusts the top end.. Not always sure if I can believe everything he claims but sometimes he does know a thing or two..

Anyways just wanted to see what all the experts think....

Here is an interesting link/review I found and I must agree with what he says about the engine (high altitude).
http://www.allthingsmoto.com/archive/topic/8168-1.html

Very interesting that no one has any insight on this.. I guess in order to get responses I needed to brand bash!

My Rev is better then your AC! - Now we should see some action on the thread!

Anyways, it turns out the dealer was wrong, he somehow reviewed the wrong chart. For high altitude I need to change the ramps and springs and NOT the pins. Also it seems that the DPM was working just fine.

It looks like a lot of work to setup my "crossover" sled for mountain riding if I were to follow Skidoo recommendations so I am looking into some clutch kits. Apparently most of these kits only require pin weight changes for high or low altitude vs. changing ramps and springs on both primary and secondary as recommended by Skidoo.

I do wonder how well a simple pin weight adjustment on a clutch kit will compare to the factory recommended high altitude setup? I will probably never find out since I can get into a clutch kit for about the same cost as all the Skidoo parts I need..

I also ride the midwest and the rockies. I converted my mxz to a 144 x 2. In order to do this, I made the following changes:

Put hollow pins in my primary. This allowed me to adjust my clutch so I only pulled 8000 revs.

Jetted down to 480's. The first year I ran out there, I didn't change the jets. The sled ran alright, but it was sluggish at times. So, the next year I went out there I changed the jets to 480's. I think next year I am going to drop to 460's. I talked with a lot of guys running summits out there, and they use 460's.

The sluggish problems are probably due to your secondary being set up for the midwest. Summits use around a 47 degree helix. This allows them to shift slower and pull through the deep powder without boging. Hope this helps.

dans1232:
Do you have DPM and still change the jets?

Sorry for the delay in response. Yes, I have DPM and still change the jets. I was told that DPM only compensates one size jet in each direction. This is why I only change a couple of jet sizes when I went out west. All you need to be is close and DPM will take care of the rest.