So I've ridden my X9 for a few weeks now and noticed that my fuel economy is really bad. Around 19 km/L. About 60% of my riding is on the highway. I'm also pretty big, 1.92m and 125 kg, so I figure I should get worse fuel economy than most. But 19 km/L seems much worse. Also, my bike sometimes stalls when I leave it idling too long, especially on a down hill slope. I'm planning to take it to AS Phoon to have them look at it, but if anyone has any ideas I'd like to hear them. Thanks!