Have 2004 YZF 450, Heard about cam mod to change cam timing. Has anyone heard about this and where can I find instructions. Thanks

 

yfzcentrel (spelling) has pics i think

 

That is where I found info. Did Mod, very satisfied with results.

 

My dealer does that they retard the exhaust timing a bit and it adds to midrange,and bottom end, you can call them they will tell you exactly what to do the number is 1-815-544-5800 the place is called Hammertime Sports, ask for the shop

 

They are specially not cheap from hammer time!

 

You can feel more power on top than anywhere else.