Got a 80’s hs40 that runs good, measured 100 psi on compression test. Installed a pz16 carb which seems great! Haven’t rode the bike yet still a work in progress, can follow along on the project forum under manco chopper. Anyway it runs good, is it worth the time to port the I/E bowls and ports ? And for exhaust I’m thinking of using bicycle frame 7/8” and making an exhaust pipe but what decent hi flow muffler can I use ? Is 93 octain the fuel to use or 87?
Intake has been blended
Intake has been blended