2008 Polaris IQ Shift 600 fuel consumption- too much!

[zstro]

Is this a common concern with the Shift 600 for 2008?? I have a 2001 Polaris 600 XCSP and it gets 4-5 miles to the gallon better than the IQ Shift any suggestions. Right now the Shift gets only about 9-10 MPG it is carbed and all stock. Thanks

 

[xcsp]

Had an '08 and don't recall it ever getting that low of mpg's. Not sure what to check, but unless you're riding wide-open all the time, it should get much better. I had been getting 13-16 with mine.

 

[tgun]

How many miles on the sled? They get better after break in if it's new. Otherwise you can play the fuel screws to decrease the fuel amount.

 

[fredster]

Factory jetting on the 600 liberty's is factory set for worst-case conditions so it's going to run rich. 9-10 MPG for stock jetting is not unusual and yes with the right main jets you can get 13-15 depending on how you ride, you'll just need to be careful if the temps drop into the -10's or more.

If you compare the main jets on the 2001 to the shift I bet you'll find they're at least 2 sizes smaller, maybe more. And you'll find tan spark plug color in the 2001, black/sooty on the 2008.