Well local kid thinks this yz is the next best thing since bread n butter...anyways he has is bored out .20 over ,air filter full ,exhaust and different carb.... i have a z with slip on hmf , uni filter , dyno jets , and a bunch of mx stuff on it ... what do you think the out come will be if i run him ? i have seen him ride it and it doesnt seem to impressive to me but thats my opinion....are these things really that powerful ? thanks

 

Well they are powerful for what they are..........

But I've ridden with a YZ250 and he was only a little faster than my z400........and a 250 is faster than a 125, and a 125 is faster than an 80....... So if you do the math I would think the z400 would have no problem staying on front of a YZ80.

 

got ya....sounds like i should run him for pinks then haha then i can sell it and put more stuff on the z lol