Quantcast
Jump to content


1999 Arctic Cat 300 4X4 - Sputter And Smoke

dbaron

By dbaron
in Arctic Cat ATV Forum

 Share

Recommended Posts

dbaron Newbie

dbaron

Posted
Posted

Hello,

I have aquired this 4 wheeler from my Dad who is moving to a town home. I will be mostly using if for plowing snow but there will be an occational trip though the woods with the kids. When plowing a pass and stoping the 4 wheeler will kill. It will start up and keep going if I keep my thumb on the throttle a little.

My next issue is the other day I took my daughter for a ride on level ground. When I turned around the 4 wheeler sputtered so I gave it more gas, when I looked behind me there was a big cloud of white thick smoke. Not sure where this came from. I would like to try and fix this myself since the repair cost at a shop I'm guessing would be expensive. This is a manual transmission with a foot pedal shift. Would it matter if I started in 2nd gear? Any help anyone can give is appreciated. I'm not affraid to take it apart and put it back together I just need to know where I should start.

Thanks,

DB

Link to comment
Share on other sites
catcandu Apprentice

catcandu

Posted
Posted

If you have to keep your thumb on the throttle to restart it, it's running rich (flooding).

The 2 leading causes for what you describe are: 1. The "choke" cable is pulled out of it's plastic socket on the carb. Remove the seat and look on the right side about half way back. There are 2 control cables going into the carb. The "choke" cable goes in to a plastic nut on the side of the carb. Make sure it is lined up squarely and fully seated into the carb. 2. The needle valve or float is bad. You'll have to remove and disassemble the carb to fix it. Before attempting removal I'd strongly suggest you download the service manual for your ATV. I also found the 96-98 Polaris manual very helpful with these carbs. They use the same ones.

oxidized_black is a great help finding downloads.

onlinecycleparts.com has the best prices and flat rate shipping ($7).

Link to comment
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.

×
 Share
Go to topic listing

  • Similar Forum Topics

    • mehim
      In search of the backwoods nudist campsites and ready to select the right ATV.
      By mehim
      Hi everyone. 
      Let me explain the thread title. 
      My husband and I are very active in the nudist community, and we have stayed at many and most of the mainstream nudist and clothing optional campgrounds in the USA. We are now approaching our retirement and would like to start a podcast to share those off the road / backwoods / little known camping areas where nudity is allowed. We have purchased a 5th wheel camping trailer with a rear garage for the ATV and now need some good reports on the one to buy. 
      We are most interested in a side by side unit but would love to get your thoughts. 
      Feel free to stop by and say Hi and ask anything you would like to better understand what we are looking for in an offroad unit. 
      Thanks for reading and hope to hear from you. 

    • ResQ91
      Help with 1987 Yamaha Big Bear YFM350FWT Carb
      By ResQ91
      Hi Guys!

      New member and could really use your advice. I would have to believe this has been an issue for others but a search here came up with nothing......? (Probably me not doing search correctly)
       
      I have an 87 Big Bear 350 YFM350FWT
      The OEM Mikuni BTM carb is shot and would rather replace than rebuild.
      It is no longer made and I have had good luck with NICHE carbs so I ordered a #K-CRB-0006 This was what they said was replacement when ordered. This Carb only uses 1 Throttle cable. The Slide is linked so it uses one. (OEM had 2nd cable coming through top to move slide)
       
      Problem is when I ordered a replacement Cable from NICHE (#C-CBL-0061) the Cable wire is a little short, not allowing Throttle to return all the way down to Idle position. I called NICHE and they are at a loss. Haven't gotten back to me after 2+ weeks.
       
      What would you recommend other than a carb rebuild?
      Can I just use 1 of the OEM cables (It is the right length) and snip/disconnect the other that went to top of Carb for Slide?
      Or ??
       
      Thanks in advance for any advice you have!!
       
      Dave
    • Its-always-something
      98 arctic cat 300 2x4 hi rev choke when started
      By Its-always-something
      Have a 1998 AC 300 2x4, Just installed a new carburetor. Engine starts easy but the choke RPMs are very hi and take along time (5-10 mins when cold out). After engine has warmed up choke releases and it idles and runs fine., It does no have an electric choke. The choke lever is never used and it seems like an auto choke? Long story short, how can I lower the choke rpm levels?
       
      Also, carb came with a spare145 jet, not 100% sure what is installed. Could this impact choke RPMs?
       
       
      Any help and information greatly appreciated.
    • DarkRider
      Have you ever purchased a quad from an impound auction?
      By DarkRider
      This is something I'm extremely curious about. Has anyone ever attempted to buy a quad (or any other vehicle) from an impound lot? I've always wondered if this could be a bargain, or a waste of time. Google searches do turn up some helpful results. Looks like the state of NJ holds auctions online which I'd be a bit hesitant about.
       
      My online searches haven't really turned up any results of anyone buying an ATV this way. I'd be really curious if anyone tried this, or knows someone who has. I've actually found a couple pages with online auctions for my state, but none had ATVs.
    • Bobbywolf
      1998 Big Bear running lean, real lean.
      By Bobbywolf
      I am working on a basket case for a friend.  It is a 98 Big Bear (YFM350FWB).  It came with a parts machine which is a 96, which I am coming to find out is VERY different from his machine.
       
      Anyway, first thing is first.  I checked compression, 150psi.  Valves are set correctly, and the engine is in time.  I cleaned the carb, and there was some junk in the passages.  It is a chinese carb, which I figured from the lack of markings or lettering altogether.
       
      The bike runs.  It idles ok, but breaks up badly under acceleration.  Pulling a new spark plug shows it is running lean.  White strap, with no black whatsoever.  So I have the carb adjusted with the mixture screw out way too much (about 5 turns), and the diaphragm needle lifted to the top slot.  It is still not getting enough fuel (or too much air).  It backfires through the carb, and cannot get above idle without carrying on.  The carb boot is in good shape, so it isn't pulling any air there.  I did test this as well by spraying ether around the boot when running, looking for intake leaks.
       
      Anything big I am missing here?  I am starting to believe that this chinese carb is the issue.  This quad came with the original carb, which I would like to rebuild and use, but the mixture screw is totally stuck, and stripped way down in its recess.  
       
      Thanks for any assistance.

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...