First, your best bet would be to find someone to help you with the engine AND with learning to fly. This is not as easy as you might think.

You can also do a "search" for "engine break-in" or something like that. You should find a lot of helpful info.

But you can start by trying this if you want: turn the needle valve all the way in (clockwise), just until it stops. Tightening it too much can ruin the needle valve seat. (For future reference, turning it clockwise "leans" the mixture.)

Now turn it counter-clockwise about 3 full turns. (Counter-clockwise "richens" the mixture.) Try to start it. It should start, and it should run "rich". In other words, it will sound like it's "wet" and will run rough. (This is called "four cycling".)

Give it full throttle and CAREFULLY (watch the prop!) lean the engine a couple of clicks at a time until it starts to run smoother. (The needle valve has little notches so it kind of clicks as it's turned.) You will also hear the RPM's increase as the engine gets leaner.

NOTE: Running one of these engines too lean can destroy it, so be careful.

As it gets leaner it will start to run at a higher "pitch", the sound will be kind of a "whine" instead of the wet burble. The engine should now be in a full 2 cycle mode.

Carefully continue to lean it. But for every few clicks you'll need to check and make sure it's not getting too lean. Lift the nose of the plane almost straight up. You should hear the RPM's increase. If the engine doesn't speed up, richen the mixture because it's too lean!

The other way to test this is to pinch the fuel line going to the carburetor. If the RPM's increase before the engine quits, it's okay. If it just quits, it's too lean.

Best I can do for you by writing.

Get help! And good luck,
Dennis-