othat looks an awful lot like a Tri-Z engine instead of yz250
i think it is a Tri-Z engine, you can see there is no powervalve
Sweet! but that big azz hole in the frame but the front (exhaust side) of the motor need gusseted or repaired!
i think thats a bolt hole, should be fine, thats the part of the frame from the original bike that is welded into the rappy chassis, so it prolly doesn't have much stress on it
Tri-Z is still awesome dude, 250 2strokes are badass. just no powervalve, so hey less maintenance!
dont be upset if it is a tri-z which i am 99.373% sure of
correct me if I'm wrong but does tri-z come stock with boost bottles..an do I see something coming out of the the intake boot..