I was wondering if anybody knows of some companies that make good aftermarket preformance parts for a 99 yz80. I'm thinkg about buying this bike used soon and wanna overhaul the engine. The rest of the bike I'm not worried about 'cus I just want the engine to put in my ysr50. Thanks guys!

 

Get it ported by eric gor or wes burr of boyesen, Get the boyesen rad valve, fmf rev pipe if ur going on the street for lots of rev,get the head polished, get the carb ported, through a fmf shorty on. Thats about it. Hows the rest of the bike look? You wanna sell me the forks, shock or hole frame?