my 07 sportsman 700 will run great for a mile or so. Then it starts to back fire and has no power. It runs just like they do when in reverse with the yellow button not pushed in. Im out of ideas thanks.

 

have you adjusted the etc? there is an ajustment on the throttle cable about 4 " from the thumb throttle, adjust it so there is about 1/8 inch of slack at the thumb throttle.

 

What if any codes are you showing?

 

I'm not sure the polaris 4 wheelers come from the factory with power?? LOL JK

 

Sounds like it's starving for fuel. Check your vent line-could be kinked/clogged. Also could be bad fuel pump or fuel filter.

 

Really...........

 

thanks for the info I will check later today and get back with everyone.

 

checked for codes it is showing 51 52 and 25 trying to find out what 25 is.

 

SAE Code P1260/ blink code 51: Injector 1-open load
SAE Code P0261/ blink code 51: Injector 1-short circuit to ground
SAE Code P0262/ blink code 51: Injector 1-short circuit to battery

SAE Code P1263/ blink code 52: Injector 2-open load
SAE Code P0264/ blink code 52: Injector 2-short circuit to ground
SAE Code P0264/ blink code 52: Short circuit to battery

I found this on the Code 25 in an old thread on here. Hope it helps!

Code 25 is on page 4.19 of the service manual in a special chart for fuel injection. The code means Transmission input-Invalid gear. I would assume it's the input from the switch on the tranny that shows what gear you are in on the speedometer display. It is also supposed to illuminate the check engine light if it's a real problem. My new 800 also had the 25 code after I unhooked the battery to charge it and then reconnected it. You can reset the code by disconnecting the battery for a couple of minutes. I reset mine and it never came back. The shift switch was also functioning fine on mine since the display always showed the correct gear.