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

Bonjour Ade,
Good idea ! I had already added a drop of oil in the gas but will add a little bit more,because, as noticed by Tom, there is not too much smoke.

Besides this, please note that this engine is a 1,6 cm3 and not a 2,6 cm3, Jin has to progress in arithmetic calculation 

There is a secondary oil needle on the other side of the engine carburetor that needs to be fine-tuned! When working, make sure that there is at least 2/3 of the oil in the fuel tank. For small engines, it needs enough liquid level to supply oil normally.
Before the first engine is shipped, we have been debugged to reach normal work before we can ship it.Jin