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  1. 08 500 EFI engine misfire

    Polaris Sportsman
    Quad is 2008 Sportsman 500 EFI....What happens with the quad is when I first start it up it idles and runs fine after quad warms up I notice a engine misfire at a specific RPM range of 4600 - 5100 below and above this range the quad runs fine. I'm wondering if the TPS has a issue where when it...
  2. 2009 Sporty 800 stalling/no power

    ATV Repair and Maintenance
    I have a 2009 Sportsman 800 H.O EFI that all the sudden started running like junk. The machine is bone stock and only basic oil changes have been done to it. I have read a million post about the TPS and TBAP sensor harnesses are awful quality, so I started there and tested everything. I am...
  3. Polaris 850XP Throttle Position Sensor 2412634

    ATV Parts for Sale
    I am suffering from the dreaded check engine throttle sensor issues. All posts indicate a newer TPS will repair this - but I could not find anyone that could tell me if the newer TPS would fit my older bike. I have a 2010 850XP Sportsman - this TPS doesn't even come close to fitting. I paid...
  4. Adjusting the TPS?

    Polaris Outlaw
    I have a 2007 Polaris Outlaw 525 IRS and it had some issues in the fall when I rode it. It would stall if I jabbed the throttle. After doing literally everything I could have tried to make it run better... cleaning carb, cleaning needles, replacing carb boots, getting it to run great (not too...
  5. 2012 Sportsman xp 850 h.o. TPS Settings

    Polaris Sportsman
    I have a new Sporsman XP 850 H.O. and I was wondering if anyone knew the factory setting for the Throttle position sensor? I would imagine I need to test the voltage on my multimeter, but I don't know the correct volatge settings. Does anyone have the factory spec or know the voltage?
  6. 2012 Sportsman 400 cutting out

    Polaris Sportsman
    Has anyone heard of/experienced this: My 2012 Sportsman 400 will run fine, then suddenly start sputtering at speed. If I keep on the throttle, it will usually start missing, backfiring, and operating at what feels like half power. If I let off the throttle, it rolls to a stop and shuts off...
  7. 06 hawkeye information

    ATV Repair and Maintenance
    Hello all. I am an ASE certified automative repair shop owner ("oh great... here we go" says everyone... lol) The only reason I say that is to let anyone know who may think that they have info over my head to let me have it anyway. I am having an issue with my 06 hawkeye. It's having a...