What is the top speed of a yfz 450 and any suggestions on how to make it faster with out puting your life savings into it

 

a $20 sprocket will increase top speed, more teeth on the front makes it have more top end speed, and so does a less tooth rear sprocket.

 

i think yfz do about 76 or so i believe and gearing is the cheapest way to change speed, it doesnt add any actualy power it just shifts it around.

 

retard the cam if it isnt, that will give you more top end for free, and a 15 tooth front gear. If the cam hasnt been turned, its very simple, go to yfz central and they show u step by step

 

Stuff done on my R

Cams
Ported
Racing intake filter
Pro circuit full system
Front sprocket 15

It does 87.5 mph on the GPS on tarmac....

 

Low to mid 70's stock top speed. What do you mean by "faster?" Gearing like said above will buy you a little top speed, but acceleration will suffer. An aftermarket slip on and an intake plus rejetting/fule tuner wakes them up pretty good.

 

70-80mph