Sorry power outage and snow keeping me busy, the wheels are 19 inch moped rims from Treatland, motobecane av88 rear drum, Sturmey dymo, Briggs cam is going out to Dymocams Monday for a grind. Going with exhaust springs in/out , need valve pockets not sure if I want to do them myself or have them done, 5 hp lifters cut down. Going to use a 5 hp briggs flojet Hopefully that will Max me out at around 6500 rpms ( rod/dipper failure)I'm new to engine build ups so there has been quite a learning curve for me.
Msrfan has been tons of help with Briggs carb and motor info, as well as some other sites and light reading.
http://karting.4cycle.com/faq.php?