GPX Legend is a classic-style manual motorcycle, produced by the GPX brand from Thailand and sold in Vietnam through private import motorcycle dealers. GPX Legend currently has 3 models including Legend 150, Legend 200, and Legend 250 Twin, in which Legend 150 and Legend 200 are equipped with a single-cylinder engine, and the Legend 250 Twin model has a twin-cylinder engine for a more emotional sound.
GPX Legend motorcycle prices for each version
Regarding the price, the prices of GPX Legend motorcycles in Vietnam are as follows:
| Model | Version | Dealer price (VND) |
Tentative on-road price (VND) |
| GPX Legend | Legend 150 | 52,000,000 | 58,666,000 |
| Legend 200 | 63,000,000 | 70,216,000 | |
| Legend 250 Twin | 75,000,000 | 82,816,000 |
With reasonable and attractive prices for a series of classic motorcycles, GPX Legend immediately attracted the attention of Vietnamese users. From here, more and more Vietnamese customers are looking for this motorcycle model. However, after a period of use, the GPX Legend model started to have some issues or minor defects that affected the user experience. So what are the basic issues or defects on the GPX Legend, how to handle and fix them? Please continue reading the following article from Tinxe.vn.
GPX Legend 250 Twin in Vietnam
Summary of basic issues of the GPX Legend motorcycle
1. Heavy clutch
GPX Legend users have reported that the clutch lever of the Legend motorcycle is heavy, causing users to exert a lot of force and fatigue their hands during use. According to research, the heavy clutch is due to the clutch cable not being adequately lubricated, and the cable routing is not straight but rather a bit convoluted, and the retaining screw is not properly tightened.
2. Stiff gear shift
The process of shifting gears up and down on the GPX Legend is rated as not smooth and quite difficult. The reason for the stiff gear shift is that the motorcycle has not finished the running-in process, and the internal components are not yet well-mated and synchronized.
3. Noise from the brake disc and rear brake
During use, both the front brake disc and the rear brake disc often produce abnormal noise due to uneven brake pad contact with the disc, creating a rather unpleasant sound.
4. Incorrect fuel gauge
After a period of use, the remaining fuel gauge on the motorcycle’s fuel tank displays an inaccurate reading, causing some people to have to push the bike. The cause of this problem is a faulty fuel float from the manufacturer.
5. Incorrect speedometer
The incorrect speedometer reading is not only limited to the fuel gauge but also the motorcycle’s odometer, which displays an inaccurate speed, jumping randomly. The cause of this problem is a faulty speedometer cable or gearbox, which is a manufacturing defect.
6. Stalling while riding
According to user descriptions, the GPX Legend motorcycle can experience abnormal stalling. While the bike is in motion, the throttle does not respond, the engine gradually stalls, and when restarted, the engine does not start. The cause of this phenomenon could be due to insufficient lubrication in the engine, causing uneven expansion of the internal components and a slight engine seizure.
GPX Legend motorcycle stalling while in motion
7. Engine hesitation
Some users have reported that the bike often experiences a hesitation in throttle response when accelerating, causing the bike to suddenly decelerate on the road, which is quite dangerous. The cause of this phenomenon could be due to low-quality spark plugs or high-tension cables, which result in uneven spark ignition and combustion of the fuel-air mixture inside the combustion chamber, causing a hesitation in throttle response.
8. Loud and hot engine
Many users have also reported that the GPX Legend engine produces a loud howling noise and gets quite hot during operation, causing discomfort and anxiety for the users. If the bike is still in the running-in process, this condition is quite normal, but if the engine continues to howl after the running-in period, the cause may be a low viscosity engine oil.
Methods of troubleshooting and panning the GPX Legend motorcycle issues
1. Heavy clutch
According to the advice of some mechanics, the heavy clutch on the GPX Legend motorcycle can be easily fixed by adjusting the retaining screw at the point where the clutch cable is held near the engine block, readjusting the clutch cable play and travel on the clutch lever, and regularly lubricating the clutch cable with lubricant or grease.
2. Stiff gear shift
This issue often only occurs while the motorcycle is in the running-in period, so users need to regularly shift gears up and down to allow the components to wear evenly. Once the running-in period is over, the issue will resolve itself. If the problem persists, users can take the bike to reputable mechanics to replace or modify the clutch spring.
3. Noise from the brake disc and rear brake
If the front brakes squeak, which is quite uncomfortable, users can sand down the brake pads to achieve even wear and prevent them from rubbing against the disc during use. After a period of time, if the brake pads continue to rub or make noise, the user may need to replace both the brake pads and the brake caliper with compatible parts from another motorcycle.
For the rear brake, the continuous noise from the brake pad against the disc could be due to the rear caliper being “aired” or dirty, causing the brake pads to constantly touch the disc. Cleaning the brake pedal will help improve the situation, and if the issue persists, both the brake pads and the brake pedal may need to be replaced with compatible parts from another motorcycle.
4. Incorrect fuel gauge
To fix the incorrect fuel gauge, users need to replace the faulty fuel float with a new one.
5. Incorrect speedometer
Similar to the issue with the fuel gauge, users need to replace the faulty speedometer cable or gearbox to ensure accurate speed measurement.
6. Stalling while riding
If the engine stalls temporarily due to light engine seizure, users can change to a thinner engine oil (10W-30) to ensure smooth engine operation during the running-in period. Avoid forcing the engine and causing bearing failure or crankshaft fracture.
7. Engine hesitation
To fix the throttle hesitation issue, users should replace the spark plugs and high-tension cables with higher quality ones that provide more even and powerful spark ignition.
8. Loud engine
If the engine continues to produce a loud howling noise after the running-in period, users can try using a higher viscosity engine oil, such as 10W-50, to make the engine quieter.
