How can you id a sirio motor? Only markings i see is the atom and .12 on the head. Made in italy on the body. It's got a black 3 needle adjustment carb, silver restrictor , turbo plug, 3 port, i think thats about all the info i can get off it.....
Oh, and the sleeve was silver....so i'm guessing its a AAC
Searched all over the place and can't find any info.