I have a Rural King version of the Hisun Sector 250 with about 75 miles and 15 hours on it. It just started being difficult to start and idle. But if I hold in on the gas a little it will start and run until I left off. It also runs good and will run good until I stop then it idles for a few seconds then quits. Its about 4 months out of warranty. Battery voltage is fine before, during, and after starting. Oil is clean and clear. Gas is fresh. I can hear the fuel pump spool up when I turn the key to actually start it, not when I turn it to the on position though like on most other UTV's I have owned. Its really odd and has me perplexed. The only other thing that I have noticed is that the engine temp indicator on the left side of the dash only indicates one bar regardless of how warm the engine is. Other than that, it runs great. Just hard to start and won't idle. Any suggestions? It has me perplexed.
Mule Pro MX question: Is there a trick to removing the center floor panel or "tunnel" other than removing the 8 plastic rivets? I removed the rivets but the panel won't pop up easily, and I don't want to force it with a crow bar so as not to break some tabs or other hidden parts. Accessory mount instruction attached. Thanks for your help. rider
Mule Pro MX floor tunnel.pdf
By Wild child 911
I have a 2018 model Hisun 450 EFI UTV. I have done over 6000 trouble free kilometers. About 4 weeks ago i felt that utv was not performing like it should. Done a compression test and found to be low. Replaced rings as they were worn. I drive in a very dusty environment. The problem of low power is still there. I have checked cam timing, valve clearances, compression up to 9.5 bar, done leak down test and valves are seating, stripped and cleaned fuel pump, removed and cleaned throttle body, checked for leaks on throttle body manifold, replaced spark plug, tested stator coil, tested hv coil, checked all electrical connections, checked injector. UTV starts easily and idles for 5 seconds and cuts out. When utv starts, it will rev up the first time and then start to miss as if it goes into a limp mode. If i lift my foot of the accelerator utv will idle for 2 seconds and then die. It starts immediately again. Would the air flow/ air pressure sensor or exhaust gas(lambda) sensor cause this. I cannot test them as dont know the correct values. Any suggestions will be highly appreciated.
By Mike McDonald
The Intimidator is made in Arkansas and the company was affiliated with the Bad Boy products at one time. The engine is a Kohler 750. I replaced the flywheel and stator a year ago, so I feel like they are okay. The battery was replaced and all the cables are good, no corrosion.
The wiring diagram shows a rectifier/regulator and an inline fuse that the manual said could be my charging problem. My questions are:
1. Are these rectifier/regulators some generic or, are they specific to each machine?
2. Are there UTV parts companies that handle parts for all brands of buggies?
3. If the answer to #2 is yes, could someone recommend the names of parts companies I could contact?