Vincent,


You can use any synthetic oil, for break-in, that meets, or exceeds the JASO-FC standard.

I suggest 25:1 ratio for break-in and going to 33:1 for general use.

Using 40:1 is the oil ratio in the instructions that come with the engine.


Please read the carburettor adjustment instructions and act accordingly.
Gas engines don't need as rich a mixture like glow engines, for break-in.