RE: Got o.s engine but how do i start it?!!
Greetings,
I could be wrong, but that thing appears to be a line control or free flight style engine, there isn't a throttle control on it. The barrel opening you see in the front with the needle valve is the carburetor.
Without serious modification (Different carb to start) you aren't going to get a throttle control on it.
Again, I could be wrong but that's how I see it.