X-Pro 150cc // Vader 150 // Lifan 150

[ProDigit]

Now that I've got over 1k miles on the bike, I've done my first oil change to 10W40.

After the break-in, I can testify that 10W40 is the better oil for this bike.
The difference between the 10w30 I used before and the 10w40 I used now, is:

1- less vibrations. The plastics aren't making as much noise as they did with the 10W30 oil, which indicates that this is the better oil.

2- the idle went from ~1250rpm on 10w30 down to <1k rpm on 10W40.
On cold it stalled, so needing to up the idle rpm.

3- top speed lowered from ~79mph indicated to ~77mpg indicated.

After the oil change, I swapped exhausts. Same exhaust, but with a different muffler allowing for more airflow with slightly less exhaust noise.
This adjusted my AF ratios, to slightly less torque at lower rpms.
The exhaust seems to derestrict the power loss past 7k rpm. Where as before, the bike has a torque increase between 6-7k rpm, it now is less noticeable between 6-8k rpm, with much less vibrations along the way.

I think I've fully tuned the bike.

My next project will be replace theb150cc engine with a CG250 engine.
The 150 has too little torque to be on the highway. The 250 has more, which can be converted to HP with taller gear ratios, allowing me to get closer to highway speeds than with the 150cc engine.
Apparently there also is a cheaper CG200 engine, which would have been better for me (adding just the power I need, and maintaining respectable fuel efficiency). It's only 31cc smaller than the CG250, however the 250 is what I have at home now.