After cleaning the throttle oil circuit, Xuanyi 2.0 is in neutral jitter.

First, the cylinder is missing. Check the cylinder line to see which cylinder line is not on fire.

Second, the quality of the cylinder line is not good, and the cylinder line is replaced in the factory.

Third, the idle speed is too low.

Fourth, the engine stability angle is aged and replaced.

5. Poor contact of distributor

6. There is something wrong with the ignition coil.

Seven, there is something wrong with the air flowmeter.

Eight, the cylinder pressure is wrong

There are many reasons, all of which may cause engine jitter, and there are other reasons that should be treated specifically. You'd better check it! !