The Hisun Sector 750 may be a new contender in the UTV market, but in a short time, this company has been able to keep up with the biggest competitors. While Hisun is known among loyal customers as a high-quality, low-priced UTV, the Hisun Sector 750 isn’t free of problems. They still have several common issues with their UTVs.
Some of the most common complaints owners have about the Hisun Sector 750s include engine overheating, it can be difficult to start, or they can have clutch issues. Other common engine issues include coolant boiling, and popping or misfiring noises. Included with these problems was one recall that could cause a vehicle fire.
Keep reading as we delve deeper into these issues and more. Whether you are a loyal Hisun customer, or you’re just looking for more information about this company, we have the details right here. Get comfortable as we help you troubleshoot, identify, and fix the common Hisun Sector 750 issues
Table of Contents
Where Are Hisun UTVs Made and Where Can You Purchase One?
Hisun is a Chinese company that builds many of their parts overseas, but they have a large facility in McKinney, Texas. In this Texas facility, Hisun takes care of the final assembly of their UTVs. This local facility also handles technical support and distributes parts to other parts of the United States.
Right now, there are over 250 dealerships across the nation selling Hisun UTVs. If you are looking for one of these dealers you shouldn’t be too far from one.
Hisun Sector 750 Specs
This particular Utility Terrain Vehicle only has a two-seat or four-seat selection though there are many other models you can choose from. For the Sector 750, here are some of the specifications.
| Engine | 735 cc 4-Stroke Single Cylinder OHC |
| Transmission | Automatic CVT L/H/N/R |
| Brakes | 4-Wheel Hydraulic Disc |
| Bed Capacity | 500 Lbs |
| Tow Capacity | 1500 Lbs |
| Shocks | Hydraulic W/ Nitrogen Assist |
| Front and Rear Suspension | Dual A-Arm |
| Front Tires | 26 x 9-14 |
| Rear Tires | 26 x 11-14 |
| Winch | 3500 Lbs |
Hisun has included several optional features as standard equipment in the Sector 750, while many other UTV manufacturers charge extra for these features. These include a roof, windshield, doors, winch with mount, EPS (electric power steering), larger wheels, and nitrogen-assisted shocks.
Recalls: Hisun Sector 750
Hisun has had to recall about 2,500 units because of a possible fire hazard.
- Hisun Utility Terrain Vehicles manufactured between 2014 and 2021 may accumulate grass under the vehicle. If this grass is close to the exhaust, it can catch fire.
Owners of these vehicles are urged to take them to the dealer so a repair can be made to prevent this issue.
Common Problems with the Hisun Sector 750
While many owners have reported some of these issues, they may or may not be specific to the model or manufacturer. These issues are the most common problems recorded amongst Hisun Sector 750 owners. If you own this particular UTV, you may not ever experience any problem at all, then again you might come across something not covered here.
Overheating Engine Problem
UTVs work hard whether on the job site or at play, so overheating is a common issue among many manufacturers. Sometimes the issue can be from low or an improper mixture of coolant, which can cause it to boil over. Clogged radiators and malfunctioning fans also contribute to engine overheating.
Always check your coolant and make sure it’s at the proper levels. While you’re checking the coolant, be sure when adding coolant you mix it properly with water according to the directions.
Some owners have reported boiling coolant. Often this is from an improper mixture of coolant and water. Most coolants work better when mixed with plain water, so follow the manufacturer’s instructions when adding coolant.
If the fan isn’t running, you’re not getting that extra air blowing over the motor to help cool it. This can be caused by loose wires or a blown fuse. Make sure all wires are clean and have a good, tight connection. Replace any blown fuses.
Another fix can be the addition of a second fan to make sure the engine doesn’t overheat.
While running over dusty trails, mudding, or other non-paved terrains, dirt, mud, and dust can clog the radiator. This blocks air from helping to reduce the temperature of the coolant. The fix for this issue is to clean the radiator with a water hose.
Misfiring Issues
Popping noises or misfiring can be caused by a loose exhaust pipe or a hole in the exhaust system somewhere. A dirty air filter and even cheap gas can cause this problem.
Once the vehicle is completely cooled off, check the exhaust system thoroughly. While riding, you could have run over a rock or a big branch that knocked something loose or punctured the muffler. Tighten anything that’s loose, and repair any holes.
Make sure the air filter is clean, and replace it if necessary. While you’re at it, be sure to refuel with quality gasoline, or add fuel system cleaners to help.
Vehicle Won’t Start
When your vehicle won’t start, there could be several reasons behind it. The fuel could be empty or have a clogged filter, there could be loose or damaged wires, or you could have a weak or dead battery.
Make sure your battery is fully charged as well, and replace it if it’s unable to hold a charge.
Other problems could be a faulty ignition switch or even a blown fuse. Check all of these potential problems and fix anything that seems amiss. If none of the above issues is the cause, you will have to get a mechanic to check the problem for you.
Problems With the Clutch
Some Hisun Sector 750 owners have experienced clutch issues after many driven miles. The clutch is a part that will have to be replaced occasionally during regular use. When the Sector 750 has clutch issues, it’s often caused by dirt accumulation.
If you are mechanically inclined, you can clean your clutch, and clutch belt with compressed air after removing the housing. You can also check the belt tension, if it’s loose it will cause loud noises and clutch problems or fall off completely.
Continued clutch problems can often be remedied by installing a high-quality, aftermarket clutch. These are meant to withstand the extreme stress put upon them when climbing steep hills, or towing heavy loads.
If you don’t have much mechanical experience working on Utility Terrain Vehicles, you should enlist the help of a trained mechanic to help you or do this job for you.
Conclusion
Hisun Sector 750 Side by Sides are rugged, good-quality vehicles made for work or play. Like other brands of UTVs, they have their own share of problems. Common issues related to Hisun Sector include clutch problems, trouble starting, overheating, engine problems, and misfiring.
Most of the listed issues have simple fixes such as proper maintenance, keeping the radiator clean, and inspecting for broken or loose wires. The Hisun company has also had a recall related to a possible vehicle fire, but it’s a free and easy fix.
Knowing what problems you should be looking out for will help to keep your Hisun Sector 750 running well whether you are working on the farm and getting your chores done, or out in the wilderness having fun.
I’m William Guzenski, ASE certified master automobile technician & automotive expert. I love to attend race events and car shows throughout the country. I also loves to travel 40-foot motorhome, exploring abandoned mines and ghost towns. I’m currently building another car for Bonneville Salt Flats and will be campaigning a drag car at several events.