Quantcast
Jump to content

  • Join Today, It's Simple and FREE!

    As a member, you can post in our forums, upload your photos and videos, use and contribute to our downloads, create your own member page, add your ATV events, and even start your own ATV club to host your own club forum and gallery.  Registration is fast and you can even login with social network accounts to sync your profiles and content.

richclick2010

2002 Sportsman 500 HO Backfires Chokes Charging Issue

Recommended Posts

2002 Polaris Sportsman 500 HO all stock.

Was running ok. Up and down the street. Backfired a little.

Took it out to play. While warming it up I forgot to turn on the fuel and it ran down and died. Turned on the fuel and fired it up. No real issues.

Upon attempting to go uphill and then through light mud problems began. Became real sluggish and very little power. Started acting like it was starving for fuel. Then it died. During this time my battery was drained. Tried to pull start with no luck until moving/pushing the quad.

Back at the shop I checked the fuel filter, fuel lines, carb bowl and all seemed fine.

I loosened the fuel cap and it started right up. Let it run for a bit, then was throttling it. Up to 3/4 throttle all seemed fine. Above 3/4 multiple backfires and choking. Also backfired when letting throttle loose.

Bike is idling rough. Closed choke and it immediately died. Would not start with choke closed. Took a few tries once choke was open again.

Charging issue: Bike is draining battery during use. Battery recharges with battery charger very quickly.

I would appreciate any and all help and advice. Thank you in advance for your time.

Share this post


Link to post
Share on other sites


i would think you picked up a little dirt in the bowl when it ran dry. maybe? have you got any spray carb clean? try that first while its running to clear it out, check the manifold boot from the carb to the cylinder for cracks, will it run better with airbox lid off or filter out? could try the air fuel mix screw ... battery ... do you have a volt meter? thats one way to catch where the juice is going. the winch might draw if connections are bad. how old is the battery? check the regulator with the meter too ... ck1999_400ex might jump in here, as he has a polaris too

Share this post


Link to post
Share on other sites

Seemed to run the same with the air box open. Didn't take filter off. Air filter is new. Manifold boot looks fine. Should I spray cleaner through air inlet with filter off? Any particular cleaner brand?

Bike doesn't have a winch, yet. Battery looks good. Previous owner says "recently replaced." Holds charge when not running. Was reading 10.55 volts when it wouldn't turn over and dropped to under 5 when trying to turn over. Recharges enough to start turning the bike over in under 10 min with external charger.

Prior owner had electric deer feeder on which was removed before sale. Switch for it was disconnected.

Share this post


Link to post
Share on other sites

found this on a polaris forum and the guy had the same symptoms as you ,,,

If you follow the the throttle cable out of the throttle control box on the handle bar the cable will get a little fatter. Slide the covering back & loosen the lock nut & turn the cable to remove the slack in the cable so theres a 1/8" gap in the contacts, retighten the lock nut & slide covering back over

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Topics

    • By Christian Brindle
      I have a 2000 Polaris Sportsman 500. A year or so ago we got it running after replacing the kill switch. It ran great but after some use for a couple months it got a flat tire and for some reason we just forgot about it and it sat for some time. Before it sat i replaced the gas cap, fuel filter, fuel pump, petcock, battery, starter relay, oil and oil filter. I recently went to start it and it started so quickly and without choke or throttle but the ATV wouldn't move till about 1/4 throttle and it wasn't really a smooth ride until 1/2 throttle. it also would bog out randomly after you came to a stop and sounded like it was getting too much fuel. I cleaned the carb and adjusted the air/fuel screw to 1 3/4 turns out.  I also messed with the idle and the throttle cable adjuster up on the handlebars. It's safe to say it now runs worse than when i started working on it 2 days ago. It takes more effort to get started and bogs out idling after about 30 seconds. I tried adjusting the idle but every time i do it'll get to a sweet spot but after driving it down the driveway and back the idle will go up and down to the point where i can't put it in gear because the gears will grind. Any thoughts or ideas would be greatly appreciated. Thanks
    • By zont
      Hi, I have just purchased a 2002 Yamaha Kodiak 400 I think, the vin has worn off and I have located an engine number I think it is J312E-004674, could anyone tell me where the engine number might be please
    • By StolenATV
      Red Honda Pioneer 700 side x side and child’s Polaris outlaw 50cc both on black Echo ATV trailer stolen 12:30 pm Last Night 10/14/19 from S Garfield St and Mississippi, in Denver, CO seen going south from 1100 block. . I have reported this information to the police. Suspect Vehicle Black Power Ram Truck w/ NY plates
      The post Stolen Red 2017 Honda Pioneer 700-4 deluxe and Gray multi-colored 2019 50cc Polaris Outlaw appeared first on STOLEN 911.
      View the full article
    • By Flipper Tiffany Roper Jones
      All I have been through everything. Bought brand new.
      Throttle safety switch 
      Cam and rockers
      ECM
      Carborator
      Stator
      Fuel safety switch 
      Battery
      Everything every forum has spoken of I've bought sealed airbox completely tight unplugged black wire on trans. I have literally done everything in the book.Checked oil today full of gas anyone no anything what might b wrong. Next I'm taking head off and making sure valves seat any ideas.
    • By Larry Fox
      I have a 2017 1000s. Should I be worried that it will catch fire? 
  • Similar Tagged Content

    • By Jean de la Chevrotière
      View File Polaris 700 2002 Owner's manual
      Polaris 2002 700 Owner's Safety and maintenance manual
      Submitter Jean de la Chevrotière Submitted 12/01/2018 Category Polaris ATV  
    • By Jean de la Chevrotière
      Polaris 2002 700 Owner's Safety and maintenance manual
    • By priglmeier
      I own a 2002 Can-Am Quest 650.
      It will start if you massage the throttle a bit and it will continue to run. BUT if you let go of the throttle and try to let it idle it will always die warm or cold.
      It has Non-Oxy premium gas, a new gapped NGK plug, a new carb (as of today) and fresh fluids. After installing the new carb it runs exactly the same.
       
      I only have a few things that I have observed since the new carb:
      The choke still doesn't do anything. It has a good cable and it is hooked up. It on fully off. There is a cable in the top, front of the engine that splits into two connectors. The connected side is in the photo. The other side has the yellow banded section and is not connected. I do not see anything in range of this connector so I don't know if this is normal or not??? The original carb wasn't really dirty or clogged. I'll use it as a spare. I don't see this cable and connectors listed in the Can-Am shop manual. Looking for some help. I want to ride!


    • By gregj49
      Blows out black smoke when you rev it up how do you adjust the carb?
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...