Quantcast
Jump to content

Tuning a 400cc Hisun 2012 model


Davo

Recommended Posts

I recently (like yesterday) bought a secondhand  hisun  400cc 4x4 SxS. It’s a one owner 2012 model only done 125 kms. It runs rough and won’t idle  for long without cutting out., even when it’s warm.  Here’s what I’ve done to try to sort it without success: cleaned air filters, cleaned spark plug, emptied old fuel and replaced, replaced fuel filters. I notice that there is a hose coming from the carburettor (on drivers side). It goes to a T piece but  neither branch connects to anything and I can’t seem to find any places where they would naturally attach.  Any suggestions appreciated. Davo918C0C8D-431B-4911-9ACB-A9C06A41CBA9.thumb.jpeg.0e006118ec010177de33f5da10e1670d.jpeg8CA2C4F0-2F28-4483-933E-A91EA738B0FF.thumb.jpeg.b295eb8d8da8488833e608fd3f430f53.jpeg

Link to comment
Share on other sites

  • 2 weeks later...
  • 1 month later...
  • 1 year later...
  • 3 years later...

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 CBS
      View File 2018 HISUN HS-550 Sector Rural King Manuals
      This is the Service manual, Parts manual, Owners manual, plus much more for my 2018 HS-550 RK UTV Side-by-Side.
      Submitter CBS Submitted 03/02/2024 Category Hisun  
    • By Hi sun 500
      hello everyone, i just joined this forum to try my luck, few days ago i bought an old (dont know exactly), 2011/14 hi sun 500cc ""carburated"",  was not running at the time, but i fell was a good deal and decided it to bring it home to play with it, this is the issue, i bought and installed a new carb, and pump, i repositioned the battery location and upgraded to a "car batt", reconnected the fuel lines and started it, but it only runs with the choke ON, i checked the bowl, it does have fuel,but for some reason wont inject it to run, i came across a video that say that ""the body small tank had to be connected for the cart to run" (was deleted when bought), sure enough i got it to run sporadically , but the so called ""small body tank'' often runs out of fuel and wont refill itself , i had to couple times do it manually, so how does that small tank works ?..what does it do?..and why if  bypass it , the cart wont start?....any help?..thanks so much!!!
    • By Tejun
      Howdy Everyone,
      New member looking forward to learning and sharing more about UTVs. I have a 2019 Coleman Outfitter with the Hisun 550 engine. Does anyone know what Code Scanner will work with it ?  
    • By johnpeter
      2012 Polaris RZR Robby Gordon Edition On Ebay
      https://www.ebay.com/itm/126322886880?

    • By Rusty Beavers
      I'm working on a Coleman UTV 400 that has a rough idle, owner has had it for about a year. When I say it has a rough idle, it doesn't have the continuous smooth running sound. At times you can hear it kinda skip, sputter, or like the RPM has fallen (RPM stay constant according to the gauge) It's not as bad as it was after I replaced the fuel filter and fuel injector (both are Chiki) not sure if that is a quality brand at this point. Checked the spark plug, it was a little foul, but not too bad. (Since the engine is still idling bad I'm going to replace that) Cleaned the throttle body making sure the carbon and soot has been removed, and the air-filter has been cleaned. New fuel is being used so it's not old or been standing. They did tell me that they were using non-ethanol fuel, not sure if that would be causing the issue. Next two things I can think of that maybe the issue is the O2 sensor or the valves need adjusting.
      Thoughts and suggestions? Thanks in advance.
×
×
  • Create New...