Hello Family, always wanted to get into motorized bikes so I bought an all black Schwinn beach cruiser for my first build. Currently working on that one now. So then being the impatient person I am I wanted to buy one with a motor already installed. So I came across this vintage Schwinn. Dont know much about it, has a different Schwinn badge that I've seen, the rear spokes are larger than the front and has a license plate. Not sure if its 50cc or 80cc how can you tell? Runs and drives but doesn't idle. If you hold in clutch the motor revs high, of you go too slow engine bogs down a shuts off. Also see lots of fuel bubbling in the fuel filter. Any tips on the first things to do on an old moterized when you get a nice old one? Check out pictures let me know what you think.