Snowmobile Engines For Sale Sach Snowmobile Engine Spark Plug Problem?

Sach snowmobile engine spark plug problem? - snowmobile engines for sale

Hello everyone, I bought an old engine with 340 cc snowmobile Sachs. when I bought it, had no spark plug. I do not know who come brand of snowmobiles, or the number of the leaf. but I have the serial number and that someone can help me, the type and number of spark plugs?

Thanks
and is a single-cylinder engine