hey everyone, i posted this project a while ago but it took over a month for my piston to arive from the u.k. and i just got it together. what i have done to it is a moderate port job (105 transfer 160 exhaust with considerably widened intake and transfers, and a massive amount of exhaust area compared to stock) custom 55% larger reed block, and a home made exhaust system. the stock carb is very restrictive, and at that i still haven't even jetted, its way rich and the head leaks, very untrue and only makes 60psi compression so it isn't running its best but still way faster then stock. anyhow hears some videos of it running.
http://s33.photobucket.com/albums/d53/kfx400rob/?action=view¤t=mopedrev.flv
http://s33.photobucket.com/albums/d53/kfx400rob/?action=view¤t=mopedrev.flv
once i get a bigger carb mill the head, got some stiffer clutch springs and get it dialed in i think it could be pretty impressive for a 50cc machine.
also, has anyone used the peewee cycle hole shot clutch springs for the pw50 in their qt? my current set up (pic attached) is a set of home depot rigged up springs that just felt a bit stiffer and a few holes in the clutch to lighten it up, it slips up to about 15mph and then thunks in nice but i really want it to be able to stall up to like 3 or 4k and then slip in. im thinking spring pressure is the route to go for this and not more lightening?