I see a drastic performance reduction on my 2017 Honda Dio gearless scooter which has just completed 9000km. I just went back to the service center and the guy there, after riding my scooter said the performance is good. But when I told him to compare it with a brand new scooter, he refused. Is it normal to have a drastic reduction in initial acceleration after running just 9000km? He said that this cannot be fixed without having a drastic hit on the fuel economy.
Initially the vehicle would pickup quite well when just twisting the accelerator knob, by 10%, now I need to twist it by a good 25% to attain the same result. Is it possible it is just the knob that needs recaliberation? If yes, how do I explain this to the mechanic? Most people act like know-it-alls and don't really like taking advises from customers.
I would also like to add that somtimes, I get the feeling that it revs too much and does not actually go as expected, as if the clutch is partially engaged and all the revs are being wasted.