cpis to me r the best if you want to spen about a 1000 dollars but my banshhe has toomy t,5s vforce 3 reeds white brothers boost bottle n the carbs r jetted an in the trails 1'st and 2'nd gear are pointless cuz all it does is spin tire and if  ur on pavement 1'st gear is pointless 2

i jus got a kx 500 2 stroke dirt bike motor of ebay the motor came with a pro circuit chamber but no tip an the carb is jetted wwhat can i do  to make it faster other then changeing the sprokets