I've been given a small atv (looks like an 80cc) and has no stickers and no mark or label of any kind to tell me what brand it is. I've gotta do some engine work on it as it doesnt start (kick start) right away. How can I tell whats the manufacturer and engine size.
In case you haven't noticed, I've just become a member and starting to learn and work on atv's. Thanks for all the help.

 

A picture would help.