FAQ(Frequently Asked Questions) 

A.

Unfortunately, there is no set combination of parts for it.
This is because it varies delicately depending on the specifications, conditions and habits of your engine and engine parts, the climate of your country, and so on.

For your reference, please check for the standard jet sizes that come with OER racing carburetors.
https://www.oer-carburetor.site/product/69

The best way to adjust the settings is through your own trial and error.
Please enjoy the setting! 

Q.

Idle mixture screw(Pilot screw) precautions
parts list No.61

A.

The tip breaks easily. Do not tighten it too much, but adjust it gently and slowly.

If the tip breaks off, poke it from the other side of the hole with a thin needle-like, approximately 0.8 mm or less in diameter than the hole to remove it.
When doing this, be very careful not to damage the carburetor or other parts.