If you've never cleaned one before I'd suggest taking it to a friend who has and let them teach you. If you don't know anyone who can help I'd suggest removing the carb from the bike and preparing a clean area to work. I like to use old newspaper to set everything out on. Those jets can dissapear quickly. Remove the float bowl and float being careful not to lose the needle valve. The pilot jet (the small one down in the hole) screws out. I have a screwdriver that I ground down to just fit in the carb body for this one. If it is tight to turn and won't come out with a small screwdriver STOP and get a screwdriver that fits the jet well before you ruin it. They are a pain to drill out once they are stripped. The needle jet is the large one in the center of the carb. It has a nut inside the float chamber that secures it. Remove the nut and the jet will push up through the carb top where the slide goes. Make sure you don't misplace the washer on this jet, without it the jet will lift into the throttle bore and make your bike run super-rich. (ask me how I know) Once you have it apart be sure to spray all the tiny little passages and holes with spray-can carb cleaner. (safety glasses are a plus) Reassemble and ride.