Something I have noticed,
Imagine you see a nice-looking bike; it's got all the bells and whistles, and a nice-looking exhaust. You see it going down the road, and it sounds great accelerating, but when off the throttle, no over-run sound?
Another one,
A Honda Wave once again with all the bells and whistles and exhaust, sounds great, but again, you hear no overrun?
Now, a bike with a clutch lever can be pulled in so no overrun sound, but a Honda Wave? Do some Thais hit a neutral with the gear pedal?
Regarding both, why do Thais do this? No overrun and just coast with the clutch in?