Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Bonjour,
First test...
I use SP98 gasoline with a drop of 2-stroke oil like all my other Hit & Miss engines, I have a nice spark at the plug and normal compression, yet I can't get the slightest backfire. .. Needle adjustment of the tiny carburettor is hellish and the lack of a launch system makes the job even more difficult. To be continued...
If you have one, how does it start ? how opened is the needle opened ?