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jetting

  1. High altitude prep

    Polaris Sportsman
    Hey guys, planning a trip to Colorado in the near future. I've taken my quad up there before but since it's carbureted (06 450 sportsman) it doesn't run very well at high altitude (Even with the air box cover off). Anyone have any tips I could use to help it run better? It's completely stock...
  2. 2004 sportsman bogs down

    Polaris Sportsman
    I have a 2004 sportsman 400 that bogs down when I go up hills. I have taken it to the dealer ship before and They did fix it. That was a year and a half ago. It is starting to do it again so whatever they did didn't really fix it and I don't want to take it back to them because I feel they...
  3. snorkel and exhaust mods

    Polaris Sportsman
    hello quad maniacs! New member first post. I have a 2012 500 ho . Need to know a little more of how a modded exhaust can help correct snorkel jetting issues. I haven't done my snork yet but want some more first hand knowledge from u guys, would exhaust mod make it run lean and would 2 1.5"...
  4. Need help jetting my Predator

    ATV Performance Modifications
    Hello, im rebuilding my predator, and i dont know that much about jetting. For this project I have bought a full pro circuit 496 and a K&N air fliter that fits in the stock air box. What would be the best jetting for my machine?
  5. ATV Altitude carb adjustment

    ATV General Discussion
    Hi,I am new to this form and have used it to help with problems before so I decided to join. Anyways I am going to colorado this summer and taking the quads. I haven't the slightest clue on how to adjust the carb except for idle.:damnit: I was looking online and saw something about an air fuel...
  6. 05' predator jetting question/opinion

    Polaris Predator
    I just recently installed a hmf slip on exhaust and a k&n filter (the cylinder shaped one that uses a bracket mounted to the stock air box w/out cover) Once I was done with that I took the predator into the shop to have the carb cleaned and provided them with a dyno jet kit and had them rejet it...
  7. A Few Mods....No jetting????

    Polaris Predator
    I have a 2005 polaris predator tld. I have installed a k&n air filter...drilled holes in the airbox, i hace an hmf slip on competition series pipe(no quiet core) and a 15t front sprocket... i have heard of guys saying that it needs to be rejetted even after just a k&n. It runs great, idles...
  8. Outlaw Performance

    Polaris Outlaw
    I bought this 08 quad last spring as a dealer left over. I have always had larger 4x4's and it was time to have a little fun. Any idea's on a decent exhaust? What about jetting? I believe this thing runs a little on the lean side to begin with. I have had the problem with backfiring under...
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