i have a 98 Formula z 670 and im getting the worse gas milage. I ride for 16 miles and my tanks empty. This sleds suppose to be good on gas to. what could be reasons im getting crap for gas? im sick of only being able to ride where there is a gas station close by.

16 miles??? That is really fat....check your carbs/jetting, you are pushing way too much fuel through there....is your sled backfiring at all? Maybe it is time for a rebuild as well. You should be able to get at least 90 miles to a tank of gas.

16 miles to a tank. *YOU HAVE A LEAK.

I think Machzzzz is right. 16 miles per tank is only about 1.5 mpg. I have the same sled and I have been getting around 10 mpg. I would check all your fuel lines and connections, hopefully one of them will just need to be tightened up a little.
* * * * * * * * * * * * * * * * Ryan

I agree..LEAK!! I pull 120 to 150 miles to a tank on my 98 670

Them must be counrty miles you're refering to http://www.snowmobileworld.com/forums/iB_html/non-cgi/emoticons/smile.gif *http://www.snowmobileworld.com/forums/iB_html/non-cgi/emoticons/smile.gif *http://www.snowmobileworld.com/forums/iB_html/non-cgi/emoticons/biggrin.gif

Better have a fire extinguisher for a fuel leak like that!