Jump to content

Hisun Axis 500 Problems - Hesitation, struggles to go up incline, and low speed regardless of gear range

Recommended Posts


Before I invest $10k+ into a brand new UTV for the farm, I want to get my feet wet with a fixer upper and learn the mechanical side of things. I acquired a 2022 Hisun Axis 500 (Lowes-specific model) from an auction for $500. It has only 200 hours and 120 miles on the engine. It looks like the previous owner used it for ranch work and didn't drive it on trails, deep water/mud, or anything too crazy.

While it runs and moves, it has some problems. It struggles to accelerate up any incline in high and low range and sometimes stalls when I let off of the throttle or change gears. When I apply throttle in neutral, it sounds like it is struggling for fuel/air and pops. When I decelerate, there is a grinding sound coming from the clutch, which I've read to be related to the one way bearing and is semi-common. The last thing I've observed is sometimes the speedometer display sometimes will show a much higher value for a few seconds after barely touching the throttle. Based on the documentation, if a problem is detected from the sensors, the instrument panel display should have an error code rendered on the screen in place of the time, but this isn't happening. Here is a video showing some of these issues (engine is exposed with console removed):



Here is another video of the clutches in action:


I've done some research, but information on this specific unit and sister units is limited. There does seem to be transmission and clutch issues reported. I still need to check into the head gaskets. I don't have the equipment to test compression right now, but I do plan on ordering what is needed soon. I do have an order in place for some cables to read the diagnostics from the computer. There is a shop two hours away from me that works on Hisun products, but I am hoping the problem can be identified and is something within my ability to handle. Below is what I've already investigated.  I am leaning towards the primary clutch needing replacement right now.

After getting it home and unloaded, I did the following maintenance/checks to it prior to operating it further:

  1. Changed the engine/clutch oil (and filter) and gear oils using manufacture recommended viscosity
  2. Changed the air filter and checked for cracks in the air intake flow. Verified good suction.
  3. Cleaned the throttle body
  4. Changed the spark plug and verified the gap was within spec (0.6-0.7mm)
  5. Changed the coil and coil wire
  6. Changed the fuel lines, fuel injector, and verified the fuel pump was outputting the correct initial prime pressure for ignition and continuous pressure after ignition. Also completely emptied the fuel tank and made sure octane 91+ fuel is being used per manufacturer specs. Ran seafoam through system too.
  7. Cleaned the spark arrester and verified no cracks or gaps in the exhaust flow
  8. Changed out the O2 sensor
  9. Checked all wired connections to ensure they were secured and no breaks were visible
  10. Checked the belt for tightness and for any signs of wear and tear
  11. Verified 4WD and the differential lock function as expected - still hesitates and struggles uphill
  12. Verified the fan gears in the shifter are not corroded and working as expected
  13. ECU was reset after replacing sensors and fuel-related parts




Link to comment
Share on other sites

Welcome to the forum.

Sounds like you hit everything and then some. The only thing I didn't see was adjust the valves. And fuel filter.


my fuel filter looked as if the ends where the hoses connect had been dipped in paint. Then the fuel caused the paint to flake off. Had some rather large paint chips come out of factor filter after only a few hundred miles. I replaced and got a new injector but haven't replaced the injector yet. That was literally 1000 miles ago.

Only major issue I've had with mine was the rear driveshaft. The part on the engine/transmission that the driveshaft attaches to is referred to as a cup. The rear driveshaft has splines that slides into the cup. The splines in cup and on the shaft chewed up. But was able to put in 4 wheel drive to limp back home. Was quicker to get replacement parts off Amazon then wait for the mobile tech.


That was at the 500ish mile mark and I've got over 2500 now. Mostly 1 lane blacktop and dirt/gravel road. But a little off-road trails. Nothing too ridiculous. Wife doesn't like off-roading. 


Hope you get it figured out.


Link to comment
Share on other sites

I did change out the fuel filter and injector, but the problem remained.  I have also replaced the wet clutch and discovered some of the rollers were out of their slots in addition to the one way bearing being bad.  I am picking up some gauges today to check into the valve clearance and adjust them if needed.

Link to comment
Share on other sites

  • 1 month later...

I'm having a similar issue with my Axis 500.  It seems to bog down and struggle, particularly on inclines/hills (see video).  Frustratingly, it also only happens intermittently, more often when the machine has been running for a while (I use it for farm work only).  So far I have:

  1. Replaced fuel filter
  2. Replaced fuel injector
  3. Replaced MAP sensor (reset ECU after)
  4. Replaced spark plug
  5. Verified air filter is clean
  6. Verified no obstructions in exhaust
  7. I only run it on 91+ gas and put a can of seafoam through it to no avail

I did previously have an issue with a failed one-way bearing, but this particular issue predates that failure.  I replaced the one-way bearing a few months ago and inspected the wet clutch, primary/secondary clutches and belt while I was in there-didn't see anything of concern.  Where do I go from here?

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.

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 donwan
      View File 2017 Hisun Strike 900 Service Manual
      Here's the service manual for the 2017 hisun strike 900.
      Submitter donwan Submitted 05/29/2024 Category Hisun  
    • By Jay5
      I’m looking for a quiet side by side for my wife and I. We will do some trail riding but nothing too extreme. We are more geared toward leisure riding since we are in our sixties. We go to Wyoming in the summer and have been looking at the Honda Pioneer 1000, can am defender.
    • By Buddee
      Put a new carb on the 500 to replace the leaking OE one.  Machine idles fine and mid and top end runs great.  It tends to have a hesitation right from the start - bottom end.   Thinking it may be the air/fuel screw??  I didn't do anything with the carb out of the box and is it direct replacement for my machine.  Of interest is the manual choke doesn't seem to work very good now.... wonder is it getting too much air?
      Any help appreciated!
    • By todd93
      Hi, all! I. I'm new to the board, hoping someone could help me out! I have a 2020 Hisun Sector 550C that I bought new in 2021. Today, I took some stuff next door to my parents. When I went to leave, I turned on the key, heard the solenoid click, but no lights, no guage activity, no fuel pump, and no starter. 
      The battery is good, I checked all the fuses, they are good. Not sure if the relays are good, or even what to look for there. Is it possible that it's maybe a wire? 
      I'm really stumped on this one! Any help would be deeply appreciated! Attached is a pic of the fuse box layout. 
    • By great8redsfan
      Okay folks. I have a low power issue. Been like this for a few years. Place I work at bought 3 and all have lost most of the pulling power.  They gave them away after local shop worked on one for 3 months and it had great power for about 1 month and then crap. They replaced throttle body, fuel injector, spark plug and IAC motor. Seat belt switches have wires cut and left open so no seat belt warning light anymore. It revs to 6k rpm in neutral but when put in gear and take off in low it just doesn’t seem to want to go anymore. Running 93 octane fuel with Stabil.  Any ideas greatly appreciated. I dont have a scan tool but no codes on dash. If held to floor it pops a little and runs almost 5K rpm but if I let off pedal about an inch it smoothed out and revs up to 6k rpm. 
  • Create New...