I have an 08 Sportsman 500 EFI, I currently have 18 hours on it. I am getting approximately 8 mpg. I rode this weekend for approximately 5 hours at an average speed of 25 mph and went through a tank of gas. My buddy got his, which is the same as mine and didn't even go through a half of a tank. We were riding in the same manner, if I was riding hard he was, or if i was going slow so was he. Does anyone have any ideas on why my machine would be using so much more gas than his ?

 

I dont know why you dont get better mileage,I have an 08 500x2ho efi with about 25hrs on it and I get about 26-27mpg although this is on snow grommed trails, I dont know if that would make th at much of a diference?

 

Yikes. My 07 X2 500 got 26.4 mpg on a recent ride in 2WD. Take it back to the dealer and raise havoc.

 

Mornin jlhenry1
That is more then 4 mpg and less then 5 mpg. I would try that test one again.
Set you trip meted to 0 also,

 

Could you have been in low range the whole time? This will effect gas mileage. I have not got that bad ever, I normally get over 20 with a combo low range/high range driving.

 

Haven't really checked it out exactly, but yesterday I put on just under 50 miles of varied trail with a lot of mud/water running and didn't go through a half tank on my Hawkeye...granted the Hawkeye has a smaller engine but I would still expect you to get better then you are getting! I know of 800s that are getting much better then yours and they are generally noted for being a bit on the thirsty side! Wondering if maybe a sensor is messed up or the calibration of the EFI is off...how does it run, I have no direct experience with the 500 EFI, but if is going through that much fuel I would think it would show up in poor performance

 

I was in low range part of the time, but most of the time I was in high range. And like I said my buddy that bought his the same day still had over a half of a tank left. I guess I will just take it back to the dealer to see what they say about it. I thought 8 miles to the gallon was bad. That was the second time that I had tested it. A tank and a half took me 52 miles.

 

Mornin jlhenry1
Yep. It did the same thing twice then I would take it back. Something is definitely wrong. Let us know what you find out,,

 

I will take it in this week and let you know what happens.

 

Just to add my .02 worth. You definetly need to take it back. I've never got below 17 in mixed riding. That was with a lot of rock crawling.