I am new in RC world, and I just got a car with OS 12CZ engine with 2BK carbulator. Somebody just gave it to me saying learn to assemble, clean and do test before going into serious RC.

The trouble is he did not give any manual, and I could not get the engine started. Could you tell me where I can get a manual, or at least tell me the initial setting value for the needle valve and the Mixture control screw?

Thank you for your attention.

You can get a lot of help on the O.S. Max FAQ pages:

http://www.osengines.com/faq/index.html

Thank you, Bax.

I hoped the manual could be on-line elsewhere, but I guess I should request off-line. Any way, I got the engine running - seeing other replies, and with a lot of experiment... Now the challenge is to make the engine idle smoothly. The rpm is somewhat erratic..