MOST 40 size 2 stroke engines need to have the high speed needle valve open about 2 1/2 - 3 turns before choking the engine to get fuel up to the carb.

As Flyboy said, I also high suggest getting some help with the engine plane.

I HIGHLY RECOMMEND getting an instructor. The instructor, among other things, will check the plane over to ensure everything is connected and working properly, check the balance and show you how to start and tune the engine. This is in addition to teaching you how to fly. Clubs provide instructors at no charge.

Many people have taught themselves how to fly. What you need to be aware of when teaching yourself is:

It is a VERY STEEP learning curve. The TYPICAL first flight of someone teaching themselves to fly is USUALLY less than 30 seconds in duration and NORMALLY results in damage to the plane, often times the damage is quite severe and results in a "rekitting" of the plane.

Hope this helps.