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1-19 of 19 Results
  1. ATV Repair and Maintenance
    I have a 2017 Sportsman 570 EFI EPS. It started last month it would idle normally around 1250-1350 RPM then it suddenly would start to climb and get stuck anywhere around 1800-2500 RPM But if I hit the gas it would somewhat settle down. I had my local mechanic look at it, he tried adjusting the...
  2. ATV New Members
    Hey, I appreciate any help/advice I can get here. I have a 2002 Polaris Sportsman 700 Twin. Over the last few years it has started running really rough and needing a lot of Choke to start. Now when I start it, I have to run the idle screw in quite a bit when its cold to keep it going and then as...
  3. Polaris Sportsman XP 1000
    I have a 2016 1000 sportsman with issues idling in neutral and park. It cranks and runs fine in R, L, and H. I have 58 psi, plugs are good, replaced IAC..is this a common issue that can be fixed without going to a dealership?
  4. Polaris Sportsman
    I am currently working on a sportsman 2016 450 H.O. EFI that will idle for about a minute then shuts off. ATV only has 71 hours. Its worse after the engine warms up. It came in barely running & had been sitting for awhile so drained the gas, changed the spark plug, and changed the injector it...
  5. ATV Repair and Maintenance
    TLDR: sportsman EFI tried to defeat me after i spent 2000$ on rebuilding it, my experience chasing down every cause for rough idle, backfiring, bogging, sputtering and running lean. Guess ill start by saying this; don’t give up when ur bike gets them gremlins! .. also always give every simple...
  6. ATV New Members
    Hi There, new to the forum. Recently bought a 2014 Scrambler 850XP EPS , was out riding and went to engage the AWD switch for the second time in the ride and it wouldn’t go into 4X4, and wouldn’t show on the screen either. I bought a new 2x4 - AWD/ throttle switch off Amazon, made by Niche and...
  7. ATV New Members
    Hey everyone I’m new to owning a atv. My dad and I are working on this Polaris. We put a new CDI box, new stator, new battery, new fuel pump, and new carb. And new spark and ignition coil. Sometimes it will go and spark other times it won’t stay on. And just dies. Any suggestions will be...
  8. Polaris Magnum
    I've been trying to get my magnum running after sitting for a year and I can't get it to idle and if it does idle it dies after 20secs but I tried to rule out all the common suspects and I bought a new carb and fuel pump and I still can't get it to run I'm pretty new to carbureted engines but I...
  9. ATV Repair and Maintenance
    Hey guys, I have a 2015 polaris sportsman 850 and it just recently started idling rough and stalling sometimes but only in park, and neutral. Runs amazing in high, low, and reverse. Any ideas?
  10. Polaris Sportsman
    Hi, wondering if anyone else has experienced this with their machine. I have less than 7 hours on it. It starts ok but within 15 seconds, it begins “hunting”, idle changes from ~600 to 1200 rpm, up and down several times then dies. I can get the machine in gear and ride right away taking it easy...
  11. Polaris Sportsman
    My 2015 Hawkeye was running perfectly all summer but I had a battery that was going bad. When I was out on the trails after 2 days My Cluster randomly started reading Lo 10.4. At this same time my Quad started having a strange whine when it is idling but not when you hold the throttle. I can...
  12. Polaris Sportsman
    I've checked everything so far, including new EFI module, new throttle body, new spark plug, new intake gasket, adjusting valve lash, checked compression (~100 psi) and so far no luck. The engine starts find and idles great at ~1800 rpm for about 30 seconds then starts to slow down as it warms...
  13. ATV Repair and Maintenance
    Hey everyone I'm not very mechanically inclined and need some help. I've found the very obvious idle screw but I don't know where the fuel mixture screw is. My polaris magnum 325 idles poorly (very slow and dies sometimes) and it has been back firing a lot and smelling like gas. Is the mixture...
  14. ATV Repair and Maintenance
    I have a 400L that I rebuilt, was attempting to adjust the idle with the large throttle stop screw. It does absolutely nothing. Looking at the throttle valve (aka throttle slide) I noticed there was an indentation in it where it appears someone really cranked the adjustment screw up against it...
  15. ATV Repair and Maintenance
    Hey guys, new to the forum and a new Polaris owner. I just bought this 05 Sportsman 700 EFI. I'm having some issues with the idle running very rough. It constantly backfires from the air intake. Sounds almost like popcorn. Any help would be greatly appreciated. Currently I have a can of Sea Foam...
  16. ATV General Discussion
    Im new to the page and I recently rolled my Polaris sportsman. from what I can see as far as damage is that there is some minor plastic damage, the handle bar is slightly bent on one side and I tore the boot on the front cvt shaft. but the idle issue is what im not sure about. ive adjusted the...
  17. ATV Repair and Maintenance
    I rebuilt the carb on my 2004 ATP. I replaced the float, needle valve and O-ring. Now I have an odd problem. It starts easily, when cold or hot. When starting cold, it will idle at about 1600 rpm for about a minute and then it starts to rev up! It will continue to rev to about 5000 rpm. I...
  18. ATV New Members
    I recently bought a 2000 Polaris Sportsman 500. They just put a new 500 HO motor in it and took it out a few times before it sat for a year or two. I have cleaned the air filter, replaced fuel pump, took carb apart except for the two jets that screw in, and soaked parts in carb cleaner for 6...
  19. ATV Repair and Maintenance
    I've got a 2011 sportsman 850xp. When I first got it it idled between 1150-1200 rpms cold and when it warmed up. I replaced stock exhaust with hmf swamp xl. Also put 28" tires on. That's all I've done to it. I've put about 35 hours on it since I've made the upgrades. I've changed the oil and oil...
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