Kymco Nexxon 50 with 196 MPG / 1,2 Liter / 100 km
 

Hello again!

I used to have a Kymco bike (CUB) with semi automatic 4 - gear - manual. I drove it about 38000 miles, then the engine gets stuck. :turtle:

Some datas:

Empty weight: 200 lbs
Engine: OHC 1 - cylinder - 2 - valve with carburator and catalyst, 3 hp
Drivetrain:
1. gear: 13,29
2. gear: 6,93
3. gear: 5,02
4, gear: 3,89
axle: 3,91

I changed the axle to 3,07, and after a tour on flat country roads, I was able to reach 196 MPG / 1,2 Liter / 100 km. Speed: About 29 mph, no cold starts, no full throttle. Fuel type: E10. With only 4 liters in the tank, I was able to drive over 200 miles. :cool:

By the way: The top speed of this "motorcycle" was about 39 mph.

Do you have any clue why the engine got stuck?

I don't know. I dismantled it, didn't found a concrete issue.