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.

bigbulldog43

1993 polaris trailboss no power, runs rough, and smokes

Recommended Posts

Need help to start what i have done new piston and cylinder bored crank seal plugs carb kit (Had bad piston when bought atv) problem I have no power runs rough and smokes have 110 compression looks like good fire stator is in correct position just dont know how to tell if there is a carb issue any help?

Share this post


Link to post
Share on other sites


Compression sounds right on. Does it run any different with choke on or off? Did you premix the first tank of gas? Smoking sounds like maybe too much oil (if its excessive). Also, what does the plug look like if you can keep it running for a few minutes.

Share this post


Link to post
Share on other sites

What color is the smoke? What does it smell like? What does the spark plug look like. You could be leaking oil into the crankcase because of an improperly installed crank seal, or a leak between the case halves. Or you could be leaking water into the cylinder through the head gasket or cylinder base gasket. Make sure all your bolts and nuts are properly torqued. You could just be getting too much oil from the oil injection. Also, check your timing and flywheel key. Also, I'm not exactly sure what the compression should be, but 110 seems a little low for a fresh piston and bore, but it still shouldn't run poorly. Did you do the compression test when the motor was warm or cold?

Share this post


Link to post
Share on other sites

Black smoke usually means you are running way too rich, the fact that you say it dies when you choke it, supports that idea. You may be jetted way too rich, or you may have a clogged air cleaner. Also, I am pretty sure that machine has an oil injection system for the 2-stroke mix. Unless that system has been properly bypassed, you should not be running a pre-mix, just add oil to the oil tank and gas to the gas tank.

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 WILYUMS
      Took a little ride around the farm today. It was good to get away from the TV, Politicians, and all around bad news. Only an hour or two, but helped recharge me. This is in Western KY on our farm. About 85 degrees today here. I will still get you guys a run down in the newer ohv and atv parks here in this end of the state. But not today I'm thinking of heading back out for a night ride later.








    • By Buell
      Hey guys, figure you guys would have some helpful direction or answers.
      So, 05 Sportsman 700 carb, new carb, fuel pump, new plugs, new air filter, new everything I can think of that is usually the running issues. Starts up fine, seems to run fine, but if under load, two people, or even one person, up a hill, or pulling a drag chain for the driveway, it starts to cut out and sputters and loses all power, until I back off on the throttle and just barely try to let itself catch itself and then I can take off again.
      I am going crazy trying to figure this thing out. Other than that, the quad runs great. Parents bought bran new, just used around the property, 5000 miles on it. Any ideas???
    • By dave3dracing
      Hi, I'm a new member
      Just bought a used 08 350 raptor with about 5 hours on it ( very clean ). Started fine when we got it. Now after a few mods (bumper, skid plates, air filter) Now will not start unless you pull in the clutch. I've checked just about everything and also checked that there is no pinched wires. Anybody have any ideas?:bangheadc: Thanks, Dave
    • By payne
      Have an Bear Tracker 250. Dont have the manual or any literature to help with. Anyhow, starts with pull start in gear, and electric starter doesnt work. Also, neutral light doesnt come on. Where should I begin?? Need some direction on troubleshooting all this. Thanks a million.

  • Similar Tagged Content

    • By Guythis448
      Looking for help on wiring up stock wiring harness specifically for a '88 Honda TRX 300 
      If anyone could drop a link or send me a PM it would be much appreciated 
    • By Beb1041
      Looking for a download of a manual
    • By warkcol
      I am having an issue where it sounds like the gears are slipping if I hit the throttle really hard and also after letting off when the engine brake is applied. Also, the drive train that goes to the front also rides again the gear shift box. I will attach pictures and a video here shortly.
      Thanks in advance!
      [ame]
      [/ame]https://postimg.org/image/cdlu6fza9/
    • By Weldingrod47
      Trying to change front wheel bearings. I removed the cotter pin and castle nut. Hub won't budge. Is there an additional retaining clip? Seems to be one of those push on type that barbs on the thread of the spindle. How do I remove it?
    • By buzzar56
      I am looking for a free repair manual for a 2003 Polaris sportsman 500 ho atv. all the posts on here lead me noplace
      thanks fred.
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...