zackattack91 - The first link appears dead now ,but if you click the "crossfire" link, it states 4 valves . I have been able to track down this ( original Chinese ) Supplier on Ali Baba for what appears to be this ATV ( KAXA motos ) at this link and it also states 4 valves :
https://kaxamoto.en.alibaba.com/prod...250cc_ATV.html
I guess I will find out when it gets here , 2v is what the Yamaha 250 Raptor has so I'd have been good with that but it says it has 4v .,although there are a few engine options if I am reading the Zong Shen ad right . Anyways I don't want to throw shade when none is due and I am not sure yet but I have encountered possible complications with the purchase and am now not certain I'll ever see it at all .Once i know for sure I'll post that information with details so others can be forewarned.