finally did my first mod

[j400exrider]

well i finally did my first mod other than handle bars, and that was to rejet and a k & N filter, i rejetted to a 162 main jet, and i took the spark arrestor out, and keep the airbox lid off, anybody know how to quiet it down, but if i put the spark arrestor in it wants to die
any help would be nice

[wheeltrax]

only way i know to quiet it down is to put the spark arrestor back in. Your gonna have to rejet if it keeps bogging down.