Hey,
Pretty much every 'wat mods can i do' thread i have read has said better zorst, carby, porting bla bla etc. Im now looking to do some porting to my 125 PIT BIKE (hope all you die hards are happy) engine. Yea the usual is remove little lumps and impurities in the cast, get it looking smooth, not polish intake and polish zorst. But is there any measurements say increase port size by 1mm etc etc. Im pretty comfy with cleaning up the intake, matching the ports and polishing, but when it moves closer to the head etc do most people just stay away from that area or are there some special tips some of you guyz can offer me?

Also if any1 has any 125 heads they dont want (upgraded, blown up engine, etc) email me, ejarvie@bytevision.com.au

Edward