Quantcast
Jump to content


Repair Kymco MXU 250 - repair the rear axle


man92

Recommended Posts

Hello, i repaired a few month ago an old ATV a kymco MXU 250 (2004) is not so difficult, just need some money, manual instruction and some hours.

1) check the noise without the rear wheels and if necessary repair the rear axle on (see video)

2) have good tools and specific grease and a friend to help you maintain the parts, a very good friend 🙂

3) have a bearing puller

have a good trip with your ATV, now new project an old yamaha big bear 350 (1999), all information and advice are welcome 🤗

Thanks a lot

IMG_2530.thumb.JPG.9148f6392eab454b5c813fac39a87df4.JPG 

 

Link to comment
Share on other sites

Big Bear 350, that should be a fun project, depending on the state of disrepair it is in. The Big Bear was introduced in 1988 to compete with Hondas 4 Trax 4x4, it was Yamahas first 4x4 ATV, it was produced for 1988 to 1999, they were tough as nails and along with the Honda set the standards for 4x4 ATVs. Did not have a very fast top end because of the low gearing, they were made more for work and hunting and boasted pulling power of 900lbs.

  • Like 1
Link to comment
Share on other sites

it's seem a good ATV, but a few parts are expensive and became difficult to find it.

Now i need to find the repairs manual for check all parts.

first cleaning carburetor and change the nozzle too big 130

That a new challenge for me, and if it the better i will sold my kymco MXU and keep the big bear for hunting and farm work.image00000016.thumb.JPG.baea0ff4ff72585d75fbca9eef14ceed.JPGIMG_2904.thumb.JPG.3e60e4b578acf0cf426dcbf5591115fe.JPG

image0000001.JPG

image0000001 4.JPG

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.

  • Similar Forum Topics

    • 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. 





    • By Mhatayas
      My uncle bought a Baja 250, 2006. Knew there was no spark since the get go. He don't know anything about quads so is getting me to help him try to get it running...
       
      battery is bad so I connected battery charger to it to crank it over , cranks over well , but no spark .... 
      Lights and everything work fine , but with each crank over using the e start switch , the display reads 999 888 777 666 ... Right down to 000 and repeats itself . 
       
      He managed to get a parts bike , I changed over the CDI and the coil and the stator from the parts bike and there was another black box by the voltage regulator I changed over ... I used my multimeter to confirm as much as I could works , it's hard without knowing which wires are which , and I cannot find any diagrams online for this bike ? 
       
      Do you think it could be the Killswitch? There's so many wires coming from there I don't know where to start . Also I should mention it appears the fan on the front of the bike has been taken off (the wires have been cut too ) 
       
      If this bike sparked it would run . The previous owner said he parked it one day and it just wouldn't start after.
    • By McG75
      1996 4x4 Timberwolf rearend width. Can someone with some knowledge of these machines answer this question for me please. Are all 4x4 timberwolves this narrow in the rearend? These tires are so close the right one actually rubs the muffler.  Thinking about seeing if there are any spacers out there for it. I need at least an inch more clearance. 
      .
       
       
    • By Mhatayas
      What should I do about this , bad oil leak where the filter cover bolts on . Can I use some gasket maker 

    • By Uglyside38
      I have a 1988 Quadrunner 250 2wd. My brother in law sold it to my son for $20...had been sitting outside for several years. Got it home and had it running in about 30 mins. Ran it a bit and then went to looking at the carb as it was having trouble idling. Was getting it pretty close, then started losing spark...Also, it wouldn't start up every time...only about 1 in 5 tries. Anyway...now, it has what I can only describe as "intermittent" spark. I can get 1 light spark right when the start button is pressed and sometimes one when it's released...but none while cranking. 🤷‍♂️

      I have replaced the spark plug, ignition coil/wire, and traced wires best I can. I noticed a couple frayed wires at the pickup coil where it enters the case. So, now I have the cover off, stator and pickup coil out and trying to test the coil. I do have about 114 ohms resistance for pickup best I can tell. And I can read minute voltage when I drag a magnet across it. Could it still be bad? Can a bad ignition switch/button cause this? (I did have the switch off to oil the choke cable)...pulling rope makes no difference though...any ideas or help would be greatly appreciated!!! It's the intermittent part that's throwing me off! 

×
×
  • Create New...