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

Bonjour Dave and Welcome,

As you can see it (and I have made other videos on my tests), I also have this M92 and had a lot of difficulties to make it run. Gil    helped me to solve my problems.
At first, you have to check if you have a spark plug whose electrodes have a spacing slightly less than 1 mm and of course a spark almost at the compression point.
Of course, the gas should go to the carburator.
The plug should not be wet because too much of gas (I use Unleaded 98 + a drop of 2 stroke oil).
The needle valve is open about 1/2 turn and is awfully sensitive, especially when the engine warms up.
If it doesn't start at all, try a few more opening degrees if it starts and stop, close.
I hope this will help you, good luck and let us know your progress / success !