Poor FE from 150cc gy6 scooter rejetting?

[Eddie25]

Update: sold the scooter got a honda xr 125. Its like a dual purpose small bike. first tank averaged 38 km/l or 89 mpg super exited!

[jkv357]

Congrats!

I think you will like having something that's better built and more reliable.

I rode a Honda 250 enduro on the street, back in the day. So far back that nobody ever even considered mileage - because gas was under a dollar a gallon!

[stiletto2]

There are a couple scooter sites (mostly Chinese oriented, but not exclusively) that you could check into. There are some guys there that know the Chinese scoots inside and out pretty much.
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[ProDigit]

My TaoTao Evo150 also got 66MPG, and I wasn't happy about it.
It's because the thing is geared to rev higher, to get a snappier performance out of it.
If you change the variator weights, you can actually make it rev slower, and thus, have a better range on the scooter; but you'll also lose some acceleration torque.

A variator is not a very efficient thing. Those 150cc's are great engines to pair with a manual geared transmission, and they could get 100MPG easily.

[Eddie25]

Update. Sold the scooter. Got a later model gy6 125cc. Also had similar consumption. Did a valve adjustment and last tank averaged me 90mpg