Porting Info Needed For Early Yamahas

[lafeet]

Hey everyone i need porting information for the early yamaha 74/75/76 125/175/250 yz/mx's
I know yamaha had porting spec's for hopping up these motors, and sombody out there should have this info.
if anybody can help please let me know.
tks
jerry

 

[SirHilton17]

Hey everyone i need porting information for the early yamaha 74/75/76 125/175/250 yz/mx's
I know yamaha had porting spec's for hopping up these motors, and sombody out there should have this info.
if anybody can help please let me know.
tks
jerry

Talk to steve (thumperkiller) on pingertalk.com ... He will give you every spec there is... You can tell him what kind of power you wanna get out of the motor and he will tell you the specs for that too...

He is a really nice guy!