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.

bizzbone

2001 Honda Foreman 400 smoking and oil coming out of exhaust

Recommended Posts



If there is that much coming out, it's like DD said..there is too much getting into the combustion chamber. Have you changed your air filter recently? Just curious...make sure it's not clogged.

Share this post


Link to post
Share on other sites

What dd said.also check your dipstick for overfill. And check spark plug. If excessivly oily. Might be time for a valve and/or ring job. How many miles on your unit?

All factors

good luck and good riding

doonorth

Share this post


Link to post
Share on other sites

sounds as if you have bad piston and rings need to check compression on cyl. also look at spark plug and see if it is black and oily hopes this helps

Share this post


Link to post
Share on other sites


just took one apart doing same thing looks like it need piston rings and a valve job take off the head and look at the valves for soft oil carbon on intake valve and see how slopy the piston is in the cylinder

Share this post


Link to post
Share on other sites

first thought,

1.check not over filled with oil.vacuum line could be sucking oil. if dirty drain and replace quick solution could go thicker eg 20w-50 bike oil

2. check filter

3. spark plug what color?

4. compression if on the low side ~120psi its rings or valve. if high could be sticky or broken oil ring( if they are sticky, try SEAFOAM, and or intake cleaner, warm upto temp and add little and rev a little and then add more until it stalls. let sit for 30min and run it until warm and exhaust should stop smoking.

5. take head off check valve guilds.

6. check rings and bore size and roundness

Share this post


Link to post
Share on other sites

Dead thread alert. This was one of those one time posters, thread was started over a year ago, he did check in last April, but has not posted since he started this thread.

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 Randy1951
      Quad starts fine and revs fine in my back yard. On a test ride it falters badly. No power. I have cleaned and rebuilt the carb, cleaned the fuel tank, installed new fuel filter, changed fuel line and cleaned the air filter. Any help would be appreciated.
    • By Chase Cook
      I have a Polaris sportsman 500 and I just replace the piston in rings and head gaskets on it and I made sure the timing was exactly right it's getting gas and fire but it still won't start. It sounds like it has low compression but at the same time it sucks in air pretty good from the intake. Also the valves are adjusted to spec. It did start the first time I installed the Piston and Rings but it only stayed running for 5 seconds with starting fluid and then it shut off and then I tried to turn on the next day and it didn't do nothing and I've been going at it for three weekends now and it still ain't doing nothing. I wonder if i set the timing off a little or a lot if it would start up, because I inline the crankshaft sprocket with the crankcase timing line like it said in a manual and the two points on top of the cam sprocket to top dead center of the piston. I even took the spark plug out and stuck a camera light in there to make sure it was top dead center and it still won't do anything. AlsoI drain the carburetor some and shut d fuel petcock off to see if it was getting too much gas and that still isn't the problem. And where I live all the darn mechanics that work on Polaris ATVs are booked for two weeks which sucks and I need hope immediately or I'm just going to set the ATV on fire because I'm getting very frustrated with this crappy brand. Every other name brand ATV I worked on I got it running right and I replace the piston, rings and everything etc, and they started up fine. But this is starting to get very frustrated and I don't know who to talk to who had this problem before, who "don't have to come look at it". Cuz when they say that that means you're not going to come look at it until 2-4 Weeks later because there booked, which I don't have time for. Living in northern part of Florida sucks.
    • By Chase Cook
      I have a Polaris sportsman 500 and I just replace the piston in rings and head gaskets on it and I made sure the timing was exactly right it's getting gas and fire but it still won't start. It sounds like it has low compression by the same time it sucks then are pretty good from the intake. Also the valves are adjusted to spec. It did start the first time but it only stayed run for 5 seconds with starting fluid and then it shut off and then I tried to turn on the next day and it didn't do nothing and I've been going at first three weekends now and it still ain't doing nothing. I wonder if i set the timing off a little or a lot if it would start up because I inline the crankshaft sprocket with the crankcase timing line like it said in a manual and the two points on top of the cam sprocket to top dead center of the piston. I even took the spark plug out and stuck a camera light in there to make sure it was top dead center. And where I live all the darn mechanics dot work on Polaris ATVs are booked for two weeks which sucks and I need hope immediately or I'm just going to set the ATV on fire because I'm getting very frustrated with this crappy brand. Every other name brand ATV I worked on I got it running right and I replace the piston, rings and everything and they started up fine. But this is starting to get very frustrated and I don't know who to talk to who had this problem before, who "don't have to come look at it". Cuz when they say that that means you're not going to come look at it until 2-4 Weeks later which I don't have time for.
    • By Trent Finnessey
      So I’m 14 years old right now..... I’m a pretty good rider for my age, I have a 98’ 300ex that I’m tryna sell. I’m thinking of a 400ex or should I skip the 400 and just go to a 450r or something along those lines? 
  • Similar Tagged Content

    • By Timothy Doerr, Jr
      Hey y'all. I have a Yamaha ymf 250 BearTracker. I got this thing for free from people whose son tore it to hell. So it wasn't in great shape to begin with. i.e. no indicator lights (neutral light for instance), no ignition switch or key( wires were twisted together to make it run), get the picture yet? 
      So when it ran it ran rough and I got it running for a year or two, just something fun for the kids to ride on with me on gravels.
      Now just randomly, the start button stopped working so I had to jump the solenoid, then put a temp start switch in. Kill switch would still work. 
      However, the thing has no spark what-so-ever. I've check continuity through the start button and it shows the contact is working, ohmed out the stator, everything is in spec, the reg/rec tested fine as well. I've replaced the solenoid on the off chance it could've been bad and the cdi unit as well, along the the little solenoid relay unit. I'm still getting no spark. The spark plugs is new as well and the coils to the plug have been tested and are good. I've tested and trouble shooted everything I can on this quad and no luck. I watched countless YouTube "no spark" situation videos and it's not helped. Does anyone have any tips or tricks I could try? Would really appreciate some input on this. Thanks!
    • Guest
      By Guest
      Ok...I'm gettin' me juevos ready to do an oir filter clean....
      Went to my local harley/quad dealer and he had me purchase the No-Toil kit (Cleaner, Air Filter Oil, Rim Grease)
      What I've read is that the No-Toil cleaner will NOT clean
      other oils off air filters....just the No-Toil oil....
      So, I've also read that others have cleaned their air filters
      in the kitchen sink, used gasoline, or used flash solvent....
      Looking for advice as I've mentioned I'm very mechanically
      DECLINED!
      I'm going to wash the air box seal in the sink and give it a good dry....
      One more thing......No-Toil or Bel-Ray for filter oil?
      Thanks!
      -TD
    • By crazynordlander
      Hi All,
      Has anyone found engine oil in their air filter box. The must be little or no baffle between crankcase ventilation and that hose that attaches to the air filter box.
      I went to pick up my ATV today 60 miles away that they could not fix the jerky low speeds on and before I loaded it decided to check on this. Sure enough there was a good coating of oil with some pooling in the bottom of the air filter box. The air filter has oil on it too but is it a dry element or oiled element type. My guess from the color of it dry.
      I heard on a comment on my YT videos that there is a kit for this issue? Is this a CFMOTO fix?
      Thanks
      Kevin
    • By bradleyheathhays
      I'm going into my '11 Grizz 700 to adjust valve clearance for the first time and when I button everything back up I'll be replacing all the gaskets / o-rings. The 5 I'll be replacing include (from the top down) both valve cover gaskets, cylinder head cover gasket, and the 2 gaskets in the crankcase cover.
      Do I need to coat these gaskets with motor oil before putting them on like when replacing your oil filter?
    • By sloundez
      Does anyone out there know where I can get a functional pair of wheel cylinders for subject ATV? Any suggestions welcomed. Thanks
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...