ok first thing I did was to remove the gas tank its simple remove the plastic and ther are 4 bolts 10mm in size and the fuel line at the bottom of the petcock.Once the tank is out of the way you have a clear shot to the carbs.Next you want to loosen the clamp that holds the tors on top of the carbs,then unscrew the tors from the carbs this will pull the slide and needle up with it(do one at a time to keep it simple).once you have the tors out of the way drain the carbs using the small phillips head screw at the bottem of the carbs it is towards the rear of the bike this wiill drain the bowls of the carbs. Once the carb is drained remove the drain line,the fuel supply line,and the choke hose that connects the two carbs together.Now loosen the clamp that holds the carb to the motor and pull the carb out of the boot,you should now have the carb in your hands, be careful whe you rotate the carb upside down because the needle jet will fall out just hold it in with your finger it is in the center of the carb so just reach in from on side or the other.Now take a phillips head screw driver and remove the four screws holding the bowl on there may be a small amount of gas left in the bowl so watch out.Once the bowl is removed you will see the main jet right in the middle it is holding a small white plastic piece in remove the main jet and piece of plastic there is a small tab on the plastic that goes into a post nect to the main jet inside that post is your pilot jet you will need a small flat bladed screw driver to reach it it is very small. remove pilot and insert new on and then replace the platic piece and in sert your new main to hold it in.now just put eveything back together in the reverse order that you removed it and reinstall carb and do the other side. you can do this without removing the carbs from the bike but its such a tight space I found it easier to just removes the carbs. if you live in oregon or washington i would be happy to help in person or over the phone let me know if this helps or if you need more info.good luck oh and one more thing make sure to line up your slides in the carbs or you will have the wide open and your shee will not start I speak from personnel experiance ha ha