Hey guys, I was wondering if anyone knows abour rejetting a Polaris Ultra SPX SE. My brother and I were talking last night and he said that I would have to rejet it (I am looking at buying it) with the temperature changes throughout the day because of the triple pipe exhaust. I have never heard of changing the jets that often bescause of having the stock pipes. If anyone has experience with this please help as I have never adjusted the jets on a sled before. Thanks.

 

I am by no means an experct here, but yes the change in temp will effect the performance. You should be fine though, I rode a lot in MN and never had to touch my jets. Also, if I am not mistaken, the Ultra was Polaris's EFI model... I am like 95% sure of it... Sooooooo, those things don't even have jets.

Let me know what you find out, maybe a Polaris snowmobile guy would know more too.