Quantcast
Jump to content


Recommended Posts

Posted

Hello all 

I have a 2010 hisun 700 carb model, it was running great all spring during covid then all of a sudden it started stalling at low RPMs and now wont idle at all.  It will run if i keep my foot on the gas but its just doesn't sound right so I stopped running it. 

My first thought was bad fuel, we had a lot of rain this spring and thought maybe condensation so i drained the tank, changed all the filters and even got new gas line and removed the second tank just to be safe after reading about not need it, still nothing.

Cleaned the carb and still nothing

Bought a new carb just to be safe as they are cheap enough and still running rough

Found the other issue with the Second Air Supply and a hose that comes from the exhaust that was broken, bought a new one of those and tried to attach it and it disintegrated in my hands when i touched it so i tried to attach it to the 1/2 that was left just trying to see if it would complete the vacuum but still ran rough

Changed the oil and filter too just in case it was that but still nothing

Took the new carb apart and cleaned it just to be safe, took out the air/fuel cover which is the stupidest thing when they send it to you without a screw driver to take the cover off so drilled it until a screwdriver could unscrew it - turned it all the way in then backed it out 2 full turns (like everyone says is the starting point) and it ran worse.

Bought a new coil just in case the spark was the issue, installed that and getting good spark so not that.

Bought a new air filter and have to still put that in so will try that tomorrow

Anything I missing, I have tried all i know and there is not enough youtube videos on repairs on these carts so looking for you folks to see if you can assist and give me some guidance on this issue

Thanks!!

Posted

No it won’t idle at all and when I push the gas and get it running it’s running semi smooth no surging but as soon as I drop rpms below 1600 it stalls

Posted

There's several things that you can try. Like checking for blockage of the crankcase ventilation tube. Or the return fuel line. I assume that you've played with the air mix screw, beyond just setting it at two turns. 

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 didgeridoo
      Hello, All!  I've decided to replace the traction batteries in my 2018 Sector E1 with a 48V Lithium set. They may be expensive, but I figure the Discovery Dry Cell are, too. I am not looking for the max driving range, as I have never received near the brochured range to begin with, but a good mix of charge/ get work done/ charge is what I am expecting.
      I have settled on the 48V EAGL kit from bigbattery dot com. Each battery pack provides 30Ah. The kit ships with a charger, as well. The packs would be physically connected in parallel (using a busbar) to one another, maintaining the 48V voltage, but together would be able to provide the amp draw the buggy pulls when going up hill or towing a rake (rated 320 max continuous Amps). This is in comparison to the serial connection the eight 6V lead batteries. Each of the EAGL batteries looks to have its own BMS; am I correct in thinking I will have to use their included charger rather than (simply) changing the onboard charger to lithium mode? The chemistry of the pack is LiFe PO4, for what it's worth.  I haven't torn anything apart yet (to diagram), so  I am not sure how the dash will interpret the AMP draw, but the kit I am looking at includes a dash mounted charge indicator.
      If anyone has completed a similar conversion, do you have any tips? Specifically, how did you remove the original batteries, and how did you secure the new ones? I am guessing that almost any change from the stock batteries would involve at least some modifications. Any tips would be appreciated, especially things I may have failed to consider. Thanks!
    • By Alien10
      Maybe members can post where they have obtained parts and service for their Hisun produced UTVs and ATVs, including the Coleman lines.  Maybe post the model you have, what you bought,  and how the products were quality wise.  Also if you had any shop service done, where (city & state) and how it worked out for you.   
       
    • By camojay
      When we first heard the noise, we immediately stopped driving it...at first we thought it might be a linkage issue, but after further inspection looks like the sound/jolting is coming from the rear diff. Took a video below...
      Anyone know what is creating the diff to skip/jump like this? We drained the diff oil and didn't look terrible, no metal.
      Other info that may be useful:
      1400 miles on it
      Recently tightened the E brake
      P.s. never posted on this forum before, let me know if the video does not work
      20240817_133539_1.mp4    
    • By downseast
      Hi everyone
      Recently purchased a 2020 T-Boss 410 in what appears to be good condition
      First time with this machine – I also have a diesel Kawasaki Mule which so far seems a better machine
      It didn’t start and idle well particularly from cold when I got it and sudden take off ( now solved with new clutch parts ) was all or nothing !
      I have replaced the idle valve, throttle position sensor, had the injector professionally checked ( ok) and also the pressure sensor this is a fuel injection engine, also plug and lead etc!
      It still doesn’t run well and when starting I have to hold revs for a while as it wont idle but stall, thereafter its better and I have rebooted the ecu which has improved it
      When I go to start it clicks as if there is a hydraulic lock and wont return after two or three attempts it then does turn over and start bit I need to give it a bit of throttle to start – is this normal ?
      Is there adjustment for the air idle valve ?
      The engine seems rough and with vibration compared to other engines I have been used to but some say this is normal?
      I haven’t changed the Lambda sensor yet, anyone know how much difference this might make ( I have a new Bosch universal to fit )
      Any advice very much appreciated, thanks
    • By CRV
      I’m need a couple parts. Diff. Lock Actuator mainly. But I would like to find a donor that maybe has bad motor or something along those lines. 
      if anyone has or knows of anything please holler at me 
      thanks Randy 
×
×
  • Create New...