Since this seems to be a common problem, I'll make a separate thread about the issue.
There seems to be a couple of possible sources of vibrations,
- Unbalanced front wheel
Easy to fix with normal balancing procedures.
- Unbalanced rear wheel
Harder to fix. Any ideas here?
Putting magnets on different positions and spinning the rear wheel with the motor on the center stand might work, but seems a bit arbitrary.
- Tyre is not symmetrical
Seems to be common with the standard Chinese tyre.
Throw away and buy a new one.
- Head bearing play
Tighten until no more play.
- Not enough or too thin oil in the shocks
How do I check this? Do I have to remove the shocks completely?