my 78 vespa grande tops out at about 21-23. the bike bog in the lowend and picks up in the mid but there is like no top end. and there doesnt seem to be any smoke comming out which kinda worries me, i am running 32-1 o and i just got it running today after it sat for like 20 years. the jet is a 47. the carb is cleaned out the petcock also, new fuel line, and a new plug. fires up pretty nicely but just SLOW. should i go richer or leaner? what jet should i get? zero elavation please help me out