Hi everyone i'm new here,, Well im running flat track soon and instead of dumping 250 on a slip on my electrician buddy just drilled through the stock exhaust so it flows straight thru- i hope thats kinda the same thing...
So now i'm aloso going to put a uni universal clamp on filter on my carb so i can ditch the airbox and stuff to install a custom seat that will be much lower.

And i'm wondering with all this breathability if i jump up from stock main 150 jet to a 160 should that give it the extra fuel so overheating etc.. can be averted...This do it myself approach may be a bit crude but my funds are limited ..Thanks Happy Riding

 

try it with the 150 seee how your plug looks, white is lean, brown is good , should be a little on the black side, 160 is too much, jetsizes go 152.5-155=157.5 ect go one ata time