Hi can anyone give me advise on tuning for a dep exhaust .

ie main jet , needle setting and any other infor

up one size on the MJ, no need to alter the needle

THANKS . WHAT ABOUT THE POWER VALVE , I THINK IT HAS BEEN UP RATED WITH THE EARTH WIRE . BUT HOW WOULD I CHECK THIS ?

I CAN SEE THE EARTH WIRE HAS BEEN CONNECTED TO FRAME , ITS THE POWER VALVE OPERATION . HOW CAN I CHECK THAT THIS IS RUNNING AT UPRATED PERFORMANCE