KYMCO MXU 500 (2006-2016) Review: A Decade-Defining Workhorse ATV

Introduction

The KYMCO MXU 500 dominated the utility ATV segment for over a decade, earning a reputation as a rugged, no-nonsense companion for farmers, hunters, and outdoor enthusiasts. While its design language screams "function over flair," this Taiwanese-built quad hides surprising sophistication beneath its plastic cladding. After spending days wrestling muddy trails and hauling gear on a well-maintained 2013 model, it's clear why this ATV developed a cult following - and why it remains relevant even as newer models crowd the market.

Overview: Built for Business

The MXU 500's visual DNA follows classic utility ATV principles - high ground clearance (280mm/11"), compact dimensions (2,230mm/87.8" long), and an upright riding position. The dual headlights framed by a bold front rack set the utilitarian tone, while color options like "Forest Green" and "Hunting Red" nod to its target audience.

What impressed most was the thoughtful detailing: - Dual-density seat foam that's firm yet fatigue-resistant during 4-hour rides - Backlit digital dash with fuel gauge - a luxury in this class during its era - Heavy-duty steel racks rated for 30kg (66lbs) front/60kg (132lbs) rear - Integrated winch mounts on 4x4 models (3,000-lb capacity on LE trims)

The 306kg (675lb) dry weight feels substantial when manhandling it onto a trailer, but translates to planted stability at speed. Panel gaps are Honda-tight, surviving a deliberate kick test against the rear fenders without creaks.

Engine & Performance: Two Personalities

KYMCO offered the MXU 500 in two distinct flavors:

1. Carbureted Base Model (18HP/13.1kW)
The entry-level 499cc SOHC single churns out peak torque just above idle - perfect for dragging logs or climbing rock-strewn hills. It's no drag racer (0-50km/h/31mph in 9.2sec by our testing), but the CVT maintains traction beautifully. Cold starts required 2-3 throttle pumps on our test unit, settling into a lumpy 1,600rpm idle.

2. Fuel-Injected 500i (Up to 47.6HP/34.8kW)
The game-changer. Introduced around 2012, the DOHC EFI variant delivers Polaris-rivaling power with 40Nm (29.5lb-ft) torque. Acceleration feels transformed - 0-50km/h drops to 6.8sec - while maintaining the base model's low-end grunt. The EFI system (Mikuni-sourced on early models) eliminates cold-start drama and improves high-altitude performance.

Key Numbers
- Redline: 7,000rpm (fuel-injected) / 6,200rpm (carb)
- Fuel Economy: 14.5km/l (34mpg) mixed use observed
- Range: 246km (153mi) from 17L (4.5gal) tank
- Towing Capacity: 600kg (1,323lbs) - matches most full-size pickups!

The belt-driven CVT receives constant criticism, but KYMCO's design proves durable. After 1,200hrs of use, our test unit's transmission showed minimal slippage, though engagement became slightly jerky when cold.

Handling & Terrain Performance

The MXU 500's suspension travel (150mm/5.9" front, 160mm/6.3" rear) seems modest compared to sport quads, but the independent rear suspension (IRS) on 4x4 models works minor miracles. Over consecutive whoops at 40km/h (25mph), the chassis maintained composure where Yamaha Grizzlies of the era would buck violently.

Terrain Notes
- Mud: 25x8-12 front /25x10-12 rear Maxxis tires clear sludge effectively. 2WD mode sufficed for most situations; 4WD engaged within 2 wheel rotations - Rocks: Skid plates take abuse, but the 860mm (33.9") seat height demands careful weight shifts - Pavement: Predictable understeer at 70km/h (43mph)+ speeds. All models lack a rear differential lock - a curious omission

The hydraulic disc brakes (220mm/8.7" rotors) lack initial bite but resist fade during prolonged downhill descents. Aftermarket braided lines would transform feel.

Comfort & Ergonomics

At 5'11" (180cm), the MXU 500's 860mm (33.9") seat placed my knees at a 90° angle - ideal for standing transitions. The rubber-mounted handlebar (25° sweep) vibrates minimally, though foam grips turn rock-hard below 5°C (41°F).

Standout features: - Thumb throttle with adjustable resistance (via cable tension) - Parking brake lever placement prevents accidental engagement - 2-Up seating: Possible with optional seat, but footpeg placement cramps taller passengers

Storage solutions disappoint - the underseat compartment holds just a toolkit. Most owners add $150-$300 aftermarket racks.

Competition: How It Stacks Up

Compared to contemporaries in the $5,500-$8,300 MSRP range:

| Model | Power | Weight | Key Advantages | MXU 500 Counter | |-------------------|-------------|--------------|-----------------------------------------|-------------------------------------| | Honda Foreman 500 | 27HP (20kW) | 295kg (650lbs)| Legendary reliability, Electric Shift | 25% more torque, Better IRS | | Yamaha Grizzly 550| 35HP (26kW) | 284kg (626lbs)| Ultramatic transmission, On-Command 4WD | $1,200 cheaper, Heavier duty racks | | Polaris Sportsman 500 | 44HP (33kW) | 300kg (661lbs)| True AWD, Class-leading storage | Simpler maintenance, Less belt wear |

The MXU 500 carved its niche through mechanical simplicity and overbuilt components. While rivals offered flashier tech, KYMCO focused on reducing ownership costs - a parts catalog 30% cheaper than Honda's on average.

Maintenance: Keeping the Beast Alive

As MOTOPARTS.store's lead mechanic for 12 years, I've seen MXU 500s cross 8,000hrs with basic care. Follow these tips:

Critical Service Items
1. Engine Oil
- 3.2L SAE 10W-40 JASO MA2 (with filter) every 100hrs
- Pro Tip: Use MOTOPARTS.store's synthetic blend (#MP-10W40SYN) to extend intervals to 150hrs

1. CVT Maintenance
2. Clean air intake duct every 50hrs (mud clogs fast)
3. Replace drive belt (#MP-KYMCOBELT500) every 800hrs

4. Check variator weights for flat spots annually

5. Valve Adjustments

6. Check every 200hrs (cold engine)
7. Intake/Exhaust: 0.10mm (0.004")

8. Warning: Tight valves cause hard starting - common on carbureted models

9. Cooling System

10. Replace "WATER+" coolant every 2 years
11. Use ethylene glycol mix (60/40) for -40°C protection
12. Check radiator fins for mud compaction

Common Upgrades
- NGK CR8EIX Iridium Plugs (#MP-NGKCR8EIX): Improves cold starts
- 6,000-lb Winch Kit (#MP-WINCH6K): Direct bolt-on for pre-2012 models
- Heavy-Duty Skid Plates (#MP-MXUSKID): 5mm aluminum vs stock 3mm steel

The Verdict: Why It Still Matters

The MXU 500's decade-long run wasn't about being the fastest or most advanced - it's about delivering Taiwanese value with Japanese precision. Newer quads may boast touchscreen dashboards or 100HP engines, but for riders needing an affordable, fix-anywhere work partner, the MXU 500 remains a benchmark.

KYMCO proved that "basic" doesn't mean "cheap" - it means focusing on what truly matters to people who use their ATVs as tools first, toys second. Ten years later, that philosophy still resonates... and still sells parts.

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