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

 

 

 

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