Quantcast
Jump to content

  • Do you own an ATV? Join our Forum!

    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.

Flipper Tiffany Roper Jones

Polaris 500 sportsman give it gas stalls

Recommended Posts





It happens. We all (is flippers) get that occasional machine that does this to us. Best part is when it’s figured out and running good it’s worth the work.  So walk away and do some research and between you and Quadcrazy there will be a logical answer.  

Share this post


Link to post
Share on other sites

Is the flywheel keyway intatact?. If the keyway is broken can also get an erratic voltage which can  take out the regulator/rectifier. Also can cause issues with timing and cam walk.  My manual state a 1/4 preload on the spring and that the cover is also a cam thrust plate

  • Like 1

Share this post


Link to post
Share on other sites

I went and got a new cam yesterday it doesn't even come with the spring preloaded which sucks. Right now I'm trying to find a cap before I can try it again. Just worried to break another one 

Also ? How on earth can the motor go backwards some where on hear someone said sounds like the motor went backwards how can that happen 

Share this post


Link to post
Share on other sites


That can happen if the engine backfires. Usually if timing is off or an unusual amount of fuel that builds up in the cylinder.   The engine kicks back.  

Can you screen shot the page that explains the cam and spring installation and post it here ? I want to read it. I don’t have time to start looking for the manual. 

Share this post


Link to post
Share on other sites


Question I fired it back up with everything back together but figured I would test the alternator first fired it up 17-18v ac let it idle for a while now 22.7vac and 7.6dc what is going on

Also if I rev it up even a little its 50v ac just putting a little bit higher idle to it that's phase to phase btw

Share this post


Link to post
Share on other sites

That was straight off the stator from wire to wire the ohms dont match manual thru exciter coils either whoever had it b4 me bought stator and voltage regulator new well when I test exciter coils there 513-521 ohms manual says 446 so makes me think something is wrong I honestly think they bought a 96-97 stator colors dont match even close to what there supposed to.

That is off the stator output

Share this post


Link to post
Share on other sites


No way. Barking up the wrong tree. What’s your DC voltage at the battery when idle? Ultimately, your spark runs off of DC voltage. HOWEVER...there used to be a problem where the magnets were flying off the flywheel and there are two types of flywheels. The one that had the problem had four magnets and the newer ones (the good ones) had 6 (if I remember right). I could see a problem if they replaced an old style flywheel with a new style flywheel throwing off the pickup. But tell me your DC voltage at the battery at idle.

Another thing to check: do you have a timing light? Use that to see if it’s actually losing spark when you give it gas. And what happened with the shot of carb cleaner test when you gave it gas?

Edited by BuggyMasters

Share this post


Link to post
Share on other sites

When I first started it up it was perfect 18v ac from stator  12.7v dc output then I left it run a little bit longer at idle then it jumped up to 22.5v ac and 7.6v dc so I kept checking it revved it up a little and jumped up to50v ac I didn't want to hook voltage regulator up to that high of voltage 

Share this post


Link to post
Share on other sites

That still would not make sense for the voltage to jump all over the place like that. Even if some of the magnets are gone OR the newer flywheel with the additional magnets was in place the voltage  should be stable if the engine is spinning at a constant rpm like it was explained? It jumped from 18v to 22v at idle ? How could the voltage change if the rpms did not ? My money would be on a bad stator. I do however find your information on the flywheel a very interesting point. 

Share this post


Link to post
Share on other sites

The job of the regulator is to smooth and stabilize / along with handling you AC/DC conversion. So you had 12.7 DC at the battery with everything hooked up correctly or are you saying 12.7 without the regulator hooked up? The more important measurement on the stator is each of the 3 primaries to ground in which there should be no continuity. Usually when people change the stator it’s because the battery is not charging. I want to know battery voltage with everything hooked up at idle. The flywheel magnets being correct is relevant for the sake of the pickup. I just can’t remember the specifics but seems that it’s ok to have the newer flywheel so long as you have the matching newer stator. New flywheel and old stator/pickup coul is not going to work if I remember properly.

Edited by BuggyMasters

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 bodon
      I have a 2011 850 Sportsman.  Has been absolutely trouble free except for 1 thing. I am on my 4th. ignition switch. I don't know if it's that they are all chinese junk or what.  It gets to a point  when you turn the key and it will act like the battery is going bad. Cranks real slow or not at all. Put a new switch in and its fine. New one will last 1 1/2 - 2 years and its junk. I've had the Polaris brand and after market. As a matter of fact the original one lasted the lest amount of time.  Other than that it's been a perfect machine . No electrical problems. No battery problems. Just curious if anyone else has had the same issue.
    • By John Dunn III
      Just bought a LT 230 anything I should watch for. It runs and drive good. Just don't want no surprises 
    • By Skhot K
      Hello! I picked up a YFM400 and I would love to talk shop with knowledgeable co-owners, and I'd love input about the machine from anyone here who clearly knows more than I do! Cheers from NY
    • By Roy Anderson
      I have a 2002 Suzuki LT-F500F, and am a first time atv  owner. I rode two wheel bikes for many years, and now, two months in to being a new at owner, am just not enamored with the thumb throttle, and I’m wondering if anyone has tried a conversion to a typical twist grip throttle as found on all motorcycles? If so, how do you like it?
    • By BAMFUPINYA
      Any current Northern AZ folks out there on this forum? Im up in Flagstaff. Any organized rides anyone knows of?
  • Similar Tagged Content

    • By turner_clint77
      Just have a couple questions 
      first does anyone else have an issue with the right hand tie rods coming loose 
      second does anyone else’s power steering making a weird sound at times 
    • By David Miller
      Does anyone know how to access the check engine codes on a 2018 450 sportsman. Just changed battery and spark plug . It runs fine but the light is on and I need this to plow snow and need it reliable. Any ideas . Thanks
    • By marek porowski
      Hi, I got a check engine light and a diagnostic code 520194 2 and i know it has something to do with throttle voltage out of range
      I'd like to know if thats something that can be adjusted ? Or does anybody know what should i test  ?  I just bought this atv and I'm fixing it as its been in an accident. 
      I also changed throttle leaver as original one was broken and I noticed inside the 4x4 selector assembly there are 2 contacts but I'm not sure if they're suppose to make contact at idle. I found some info online but some are saying they're suppose to touch and some say they're not. I think id depends of the year of the machine but I'm not sure. I'd really appreciate any help that i can get with this
      Thanks 
    • By Barry Troxtell
      I have a 2005 Sportsman 500, Instrument cluster will not illuminate, hi/lo beams work though.  Any tips or troubleshooting info is greatly appreciated!
    • By Christian Brindle
      I have a 2000 Polaris Sportsman 500. The Speedometer got water inside of it and it sat for a long time. So now that speedometer is trashed to say the least and i need to find a replacement. I don't want to put up the cash for an oem one so i was wondering if anyone knew any good speedometers out there i could use. I've found many speedometers i like but don't know how i'd wire it up without the same connection points. Thanks, any input is appreciated
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...