Quantcast
Jump to content


polaris Engine issues!!

nitro4you

By nitro4you
in Polaris ATV Forum

 Share

Recommended Posts

nitro4you Newbie

nitro4you

Posted
Posted

Ok I just installed a new motor (My old one blew up piston skirt shattered) I installed everything correctlt..I think! I got it running tonight with no issues it started right up with no issues. I let it idle for about 5 minutes just to let it heat up check fluids etc. I shut it off a few times and it started back up with no issues. So im standing there and all of a sudden it goes wide open so I shut the key off....it still ran, turned of the on\off switch...still wide open running!!!! So i figure let me yank the plug wire...I did and made sure there was no arc and it was far away to not spark.....still wide open running!!!!! so in a last effort I unscrewed the top of the carb that houses the throtle assy and ripped it out and it finally shut off......WHAT THE $%$%$#% happened!!! has anyone ever heard of this ??? there are no kinks in the wires the throttle works fine as far as the cables go but im afraid to try and start it again without someone giving me asvice on this or if they ever heard of this! HELP!!! Ive been working on this thing for over 2 mos!! I just want to get it running correctly!

Dave

Link to comment
Share on other sites
Ajmboy Grand Master

Ajmboy

Posted
Posted

You disconnected the plug wire while it was running? No spark and it still ran wide open? Maybe it was igniting on compression at that point similar to what deasels do...but it would really have to be high compression...weird. You have a possessed motor....:confused: Where are you at now with it? Carb off? You gonna try it again?

Link to comment
Share on other sites
LT250R Enthusiast

LT250R

Posted
Posted

I was thinking air leak also.get the old can carb cleaner out start it and spray around intake and head if it doesnt stop by then spray it into the carb and that should shut her off if still reving to moon.they rev up hi when you forget to turn gas on and its starving for fuel too. but im the only one that forgets to turn fuel on haha.

Link to comment
Share on other sites
  • 1 month later...

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.

×
 Share
Go to topic listing

  • Similar Forum Topics

    • Spritee1
      2006 polaris sprotsman 500 ho issues with the unit like the belt is slipping
      By Spritee1
      having an issue with the unit when running under a load up a hill or in high gear, seems like the belt is slipping, there is a clapping sound coming from the primary clutch like it releases and snaps back in. i don't think I should have a noise like that. this is a friends unit and he has already replaced the primary twice with the same result.
      not sure where to look next
    • 1998Zuki250
      Legal Issues
      By 1998Zuki250
      Anyone here ever have any issues with the law for riding on public land? Im in upstate NY and they seem to ruin everything so Im over cautious. 
    • N00bie
      2012 John Deere Gator 850i RSX Idle Problem
      By N00bie
      From Arkansas. Just bought a 2012 Gator 850i RSX because I could not pass up the price. BUT it has an idle problem. So, to be honest, I joined just to get a service manual. I have a choice: 1)Buy a hard copy: ~$100; 2)Buy a CD ~$35.00; Get a direct download for free posting 10 times; or get a download for $29.00 (subscription). Haven't decided what to do yet.
    • McG75
      New Yamaha Timberwolf Rear Shock Found!
      By McG75
      Sorry I suck at these forums so if you see this submitted under update status, my bad. Anyhow this is a new shock for a 96 Yamaha Kodiak 400 4x4 it fits my 96 Yamaha Timberwolf 250 4x4 perfectly. Little narrower are the bottom than the original but everything else is perfect. I extended it to almost a half in from full extension because I’m pushing 350 pounds.  It rides and hold me well. So if any of y'allRace driven shock. have been looking for one and didn’t want to do the research here it is. 





    • John Sinclair
      1992 yamaha big bear 350 carburator issues
      By John Sinclair
      I WANTED TO UPGRADE THE CARBURATOR ON MY 1992 BIG BEAR 350, SO I ORDERED A NEW CARB FROM EBAY.  ACCORDING TO THE WRITE-UP IT WAS A GOOD FIT FOR BIG BEARS FROM 1988 TO 1996.  WHEN I REMOVED MY ORIGINAL CARB I NOTICED THAT IT WAS DIFFERENT FROM THE NEW CARB MY CARB HAD TWO THROTTLE  CABLES THE NEW CARB ONLY HAD ONE CABLE.  HOW CAN I MAKE THIS CARB WORK ON MY TWO CABLE THROTTLE?  

COMMUNITY SECTIONS

ATV FORUMS

QUADCRAZY MEMBERSHIP

Be a part of best online community of ATV riders and join thousands of people who love ATVs! Share your ATV photos, videos, ATV rides, get help with your ATV and more. Not a member?

SIGN UP TODAY

ADVERTISE WITH US

FOLLOW US ON

  • Automotive Webmaster
×
×
  • Create New...