KYMCO ZX 50
Kymco's ZX 50 scooter was their peppy 2-stroke 50cc sports scooter in the early years of their North American presence. After a few years the sporty Super 9 joined the ZX50 as an even sportier option. For 2006, the USA MSRP was $1799 which was several hundred less than the Super 9. The ZX 50 was part of Kymco's original lineup in the USA when they entered this market in late 2000 and it was also part of the original line up in Canada for the 2005 model year. The ZX 50 was sold for six years in the USA (2001 - 2006) and three years in Canada (2005 - 2007). Elsewhere in the world, the ZX50 debuted as early as 1996.
The ZX 50 used the same motor as Kymco has used in all of their other 50cc 2-stroke offerings such as the Super 9, Like 50, Super 8 50 2T, Vitality 50 2T etc. You can read all the details on this motor on the Super 9 page, but essentially this motor is a clone of Honda's AF16E/AF18E engine and thus it is a well engineered motor with an abundant aftermarket parts scene. The ZX 50 was usually restricted to about 38 mph via an electronic CDI/Rev limiter restriction and a restriction in the gearing.
To get rid of the electronic restriction, you can use an aftermarket CDI intended for a Honda AF18E/AF16E Dio scooter, or you can simply look at the wiring near the CDI and connect the light green wire to the dark green wire via a splice or soldering. Removing this restriction will increase your top speed to about 43 mph. To go faster still, you’ll need to remove the restriction near the variator which you can read about here. Doing this will get you a top speed close to 50mph. From here you can start doing performance modifications like lighter rollers, big carbs, exhaust and big bore kits if you want even more speed (and lower fuel economy and reliability).
Fuel economy for the ZX 50 is good for a 2-stroke. The ZX50 typically achieves 65-75 mpg under normal use, which translates to a theoretical range of 90 miles before you run out of gas.
Storage & Convenience
Kymco equipped the ZX 50 with a nice glovebox and a moderate amount of space under the seat. The vertical design of this scooters engine compromises the underseat storage space somewhat, but Kymco did a manage to free up a reasonable amount which comes at the expense of seat height. The seat of the ZX 50 is 31" off the ground, which is an inch or two higher than the typical 50cc. Accordingly, riders with shorter legs may find this scooter too tall. The standard rear rack is a nice feature which can be well utilized with a top case or bungee cords and a bit of creativity.
Overall, the ZX 50 has a solid motor and scores well for being practical with it's ample storage capacity and front disc brake. It's a good practical choice for anyone who's happy with the high seat height. The peppy engine and higher seat height make it well suited to taller/larger riders who are after a practical 50cc. The most direct competitors to the ZX 50 are the Yamaha Jog and Honda Elite LX / SR, both of which share similar sporty styling and 2-stroke engines. Compared to those scooters, the ZX50 is less common so the used part market is quite a bit smaller.
Kymco’s design refinement was also lagging quite a bit behind the Japanese back in the mid-90’s when this scooter was created, so the overall quality and refinement isn’t at the same level. The motor is a solid performer though and it’ll provided decades of reliable use if it’s well maintained. The Honda Elite SR/LX and Kymco ZX 50 both have proper glove boxes, which are quite handy and something the Jog lacks.
Please consider adding an owner review of your ZX50. It greatly benefits other readers and improves this site.
OWNER REVIEWS - Browse the Kymco ZX 50 Owner Reviews
- Fast and reliable engine
- Lots of aftermarket parts
- Front disc brake
- Glovebox & Underseat storage
- 2-stroke fuel milage
- High seat height
- Dated styling
Submit Review - Own this scooter? Add your thoughts to this site.
MotorscooterGuide Forums - Visit the forums on this site to chat about this scoot.
Variator Restriction Removal - Learn how to get full performance out of your 2-stroke Kymco
KymcoForum.com - A good place to learn more about Kymco’s
OEM Kymco Parts Look Up - Nice for viewing exploded diagrams and ordering parts.
* Engine: Air cooled, 49cc, single cylinder, 2-stroke
* Power: 4 HP @ 7000 RPM, 3.3 ft/lbs @ 6000 RPM
* Transmission: CVT
* Bore & Stroke: 39mm x 41.4mm
* Compression Ratio: 7.2:1
* Fuel Delivery: Carb with Auto Choke
* Wheelbase: 48” / 1219mm
* Weight: 192 lbs
* Starter: Electric and Kick
* Seat height: 31"
* Spark Plug: NGK BR8HSA
* Fuel Tank: 5 liters / 1.3 US Gallons
* Brakes: Single Piston Disc (Front), Drum (Rear)
* Front Suspension: Telescopic Fork
* Rear Suspension: Single Shock
* Tires: 110/70-12 (Front), 120/70-12 (Rear)
* Colors: Red/Silver, Blue/Silver
* Years Sold: 2001 - 2006 (USA), 2006 - 2007 (Canada)
* MSRP: $1799 (USA)