Re: New to forum
Welcome to the forum. We're glad you've joined us. Sounds like you have a good start already.
If you could post a photo of your engine we'll be able to tell you about the size (cc). A good rule of thumb is to measure the cylinder head stud size, not the nuts, the stud diameter. If the studs are 8mm then you have the larger, 66/70 cc engine. If the studs are 6mm you have a 49cc.
Good luck, have fun and ride safe.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"