Motor question

Forget the 51 52 54cc, they all have the same 44mm ported piston, they add 3 small upper ports and call it a 54cc. Forget using a Cag engine unless you own a welder. You need a 49cc piston port engine, and X7 motor mount the Cag is totally different. I built a Hot Rod engine, with alloy head and 19mm HDA 223 Walbro Purge carb.

Get ahold of Boosted306, Sam the Man, I call him. Or Power by Sam, ask him for a 49cc ported piston port Cyld/Head. For $60 shipped you get a Cyld and new set of rings. if you piston is still good, and I am sure he will give you a good deal on a piston if you need one. The cag and piston port use the same engine. Don't get a ported piston, they only work on a cag reed port. I have 6 of his kits, they all Rock.
When you get the cyld, clean and debur and polish the parts, then leave the base gasket out and seal it down, that will kick the compression way up. Then get a Walbro WT 813 carb and mod a stock intake manifold to fit the carb pulse hole. I get an alum manifold for $13 online. Then get a Fatty exhaust pipe. Keep an eye on dave'smotors in Utah online, I got a real Walbro 813 for $29.99, they have great Vstack and choke units also. My scooter is a Wolf in sheeps clothing, when you grab the throotle the front wheel jumps off the ground. Need to grind the fins on the Flyw and mod your clutch also.