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.

searsmonkey

1998 suzukilt-f4wd 250 cc

Recommended Posts

bought above machine after a 1989 of same make , model. wish i had keep old one. new one will not perform near what the old one did. 15 to 20 miles an hour in speed ,going down hill and on streight. difference is the carb i has a mikiuni BST31SS .old one had a mikuni VM24SS am thinking and want to replace with a bigger throated carb.am i thinking along the right lines or way off?

Share this post


Link to post
Share on other sites


I think your old one probably ran better because the motor was in better shape. Check over your motor real good, you may just need to do some minor repair work or make some adjustments. Make sure all the filters are clean, fresh fuel and oil, pull the carb off and make sure everything is clean in there, do a compression test, check the valve adjusment, new spark plug.

Share this post


Link to post
Share on other sites

no unit ran this way right from dealership.took it back four or five times dealer said it was due to EPA rules. motor is rebuilt now with a high compression piston.still runs bad. have put the bigger carb on it . does starts 100% easier but lopes at high RPM. have not had it at on dirt. also been to busy to miss with it.put new fuel pump rated as 14 liter an hour.looking for more if's? could be's.

Share this post


Link to post
Share on other sites

I imagine the cam profile is less aggressive, if a cam from an older model fits that may help you gain a little power. I would imagine that the jetting was leaned out for the tighter EPA regs too. Might look into intake changes, the newer design may be more restrictive than the old one. They probably made changes to the timing curve too, if an older CDI box will work, that would probably help wake it up too.

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 Dra O
      posted a while back - it was running at one point - I have all the plastic shroud off - it's down to frame and engine now
      -fuel pump: when line from petcock is attached, no fuel comes out other side to carb; the line to the carb is open (can blow through it); I thought when I cranked engine that the pump would spit out fuel on other side but it does not; I removed fuel pump and opened it up - diaphragm looks good - but internal areas had lotsa calcification build up - I cleaned this out and dried it good - the clear plastic pieces (?diaphragms) aren't broken - the spring w/ steel ball on end moves freely; am putting it back on tomorrow; but can anyone answer about the pump? isn't it supposed to pump fuel through it... to other side... to carb? puzzling
      -along with fuel pump: I replaced petcock 3 weeks ago (gas tank had rusty fuel in bottom - cleaned it out prior to new petcock); when I turn petcock arrow NOT to on or reserve, fuel comes out of line; when I turn it to on or reserve, fuel doesn't come out; puzzling
      -I don't know what's on back of fuel pump - it's a valve that has a hose coming out of it - looks like it goes to engine/carb - I haven't traced this out yet - what is it?
      -can squirt gas on air filter and engine will run for 2-3 seconds then stop - fuel in top of carb (under diaphragm) does same
      -it likely needs carb rebuild - will get to this - but something isn't allowing fuel to get from fuel pump to carb
      -I THINK it has a mikuni model x carb - diaphragm is ID 26mm  OD 68mm - hard to find inexpensive diaphragm, I guess because it's a model x
      -last thing - I replaced solenoid due to old one clicking; I HAVE to be charging the battery or it won't start/turn over - battery just goes dead; but if charging, it'll turn over nicely; i'm guessing it's a bad battery
      -any help appreciated - I've never owned an ATV before - inherited this beast from grandparent in-law
    • By Steven Urban
      First time using this forum.  Owned a Kawasaki dirt bike once, had no issues.  But I picked up this 4 wheeler at an auction.  They stated it ran, but only needed a battery.  Well I do not believe that was all true.

      Some pictures are attached.  Not sure why, but the whole air filter stuff was removed.  They had some small thing inserted as a make shift air filter.

      I purchased a battery to try this all out.  Waiting to return it and get the proper size, as it was too big for the battery box.  But here is my issue I had while the battery was connected.

      1 - The lights on the steering column did not come on.  Not sure if they work or not.

      2 - The starter solenoid seems to be bad.  I have a new one on order. 

      3 - In the pick, there is another rusted part.  Not sure what that part is or what it is used for.

      4 - What is the 12v rectifier?  square bodied part.

      So when I hooked the battery up.  Pushing the start button did nothing.  Pulling the cord to try and pull start, it turned, but would never fire.  I have put in a new spark plug as well, it looked worn out.  With electric start, I crossed over the posts on the start solenoid, it turned over, but would never fire and start.

      I have read a few other threads and it stated something about needed the neutral light on.  SOmething about a kill switch.

      Any help would be appreciated.



    • By Jodawg1981
      How do i find out what carb came on a 06 suzuki ozark 250? Trying to get a new carb and need to know the model number or size. I know its a mikuni. Or if anyone has one let me know
    • By M C
      Hello all!
      A friend of mine has this particular 4 wheeler. It sat in the garage for about a year, so I redid the carb, cleaned the tank and installed a new petcock. So far, it cranks right away whether its button started or pull started. So I have a couple of questions concerning the carb and air filter.
      1. Is this a cvk32 250 or 350 carb? As the air fuel ratio adjustment is different according to a cvk document I read. What's your adjustment setting? 2 whole turns and a 1/8 or 2 whole turns and a 1/2? Comparing the old setting on the carb to the new setting (and where the needle sits now), makes me think it was way off before. 
      2. The Air filter cover, gasket, air filter and plate element are all missing. So I was thinking of removing the hose that goes to the air box and put one of those K&N style looking filters and be done with it. So my question is.. will I have to readjust Air Fuel screw or just adjust Idle?
      It's just going to be driven around the neighborhood.
      Thanks in advance for any info or help. Y'all stay safe out there!
  • Similar Tagged Content

    • By Ellery Zandt
      Does anyone have a redcat 250 or falcon 250cc that they can share where the two vacuum lines on the carburetor that you run antifreeze through I honestly have no idea where the lines are suppose to go to circulate the antifreeze. 
       
      Any help is greatly appreciated. 
       
    • By BosoxBruce
      Recently I noticed gas leaking from under the gas tank on my 2005 250 2x4. As I looked closer it appears to be leaking from the shut off valve under the tank. It's the valve with the handle that can be turned to open, close or reserve. Can this part be replaced? Thank you.
    • By Derick Joel Smith Trimmings
      Buying a Baja 250 tomorrow for 600 bucks, needs nothing but a wheel bearing, i already know Baja is an off brand crappier. Manufacturer, but does anyone have any tips or knowledge of these bikes? 
    • By fatfarmboy
      Just bought (Tue. evening) an '89 Suzuki 250 4wd that has been sitting out the last 5 yrs. It's complete, including the shift knobs, battery cover, and headlights. It has the optional cooling fan on it (probly stuck - didn't check), and the engine isn't locked up. Plastic looks good and isnt cracked. Racks aren't bent up. Shift lever works, the foot brake moves (needs oil - have to pull it up by hand), and there's black oil and no water in the engine sight glass. Guy was asking $125 and gladly took $100 for it. Anxious to get started on bringing it back to life. Been wanting one of these for years. As soon as I can get to it (working on a junky "Jackel" right now - Chinese Yamaha Timberwolf). I'm going to pull the tank off it and clean it, clean & possibly rebuild carb, put in new plug, and a battery, then see what happens. If nothing, will keep going until it runs. Feel free to respond if you want to, I'm mainly just excited and wanted to tell somebody. 
    • By Flanstone
      I just bought two 1985 TRX250's from my father-in-law. One runs great, the other not so much. The one is having issues with the shifter. The shifter seems to be resting lower than normal. When I press the shifter downward, it just pops back up. Any thougjts as to what the issue might be?
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...