I adjusted the oil level of the carburetor of Bandit 250 and the condition improved.But, rattling is noisy.
And exhaust gas smells.
It is very troublesome, but I removed the head cover and checked it.There is no abnormality.
I thought that the cam chain was stretched or the valve was locked with carbon.
There was not oil burning inside the head.It was unexpectedly clean and I was surprised.

Therefore, I decided to remove the cylinder I was most afraid of.
And I will check the cylinder and piston.

The Bandit 250 already have finished repair.Ultimately it has been resurrected like this ↓.It became a big repair of Heisei.