Here's what I posted on another thread before:
I've done quite a few of the PD style (which is what you should have) and can be of help if you need it. Near the bowl is the model number. Either 42A or 42B depending on K or F model. Partsnmore.com has the kits for $10 a piece. I've always had good luck cleaning the needles and jets. Simple Green and an ultrasonic cleaner work wonders!!!
Put the drill down! You shouldn't have to use any power tools on these!
Step 1) Take some pictures as a reference for later on.
Step 2) Take all the butterfly plates off. Hold the throttle lever open while you do this in case your screwdriver slips off. You don't want to score your sliders.
Step 3) Unscrew all your slider levers from the throttle shaft.
Step 4) Loosen all your hose clamps.
Step 5) Back off the allen screw for your cable guide.
Step 6) Remove your backing plate and front bracket.
Step 7) Start sliding your carbs off the throttle shaft starting with the #1 carb. When you are ready to pull off #3, be careful as your return spring will want to twist the carbs.
Step
Sliders should pull easily out of the body. A small punch should easily push the pin out of the float. Slide the float out of the needle. Don't try to pull the needle out with the float as many of them are stuck. If they are stuck, a pair of pliers should pull them out.
Step 9) Remove the main jet using a screwdriver and, if memory serves me, a 7mm wrench.
Step 10) Although Honda says the slow jets should not be removed, I always do. They seem to be the hardest part to clean. Get a pair of pliers with a wide jaw and grab them sideways and gently twist until they turn free. If you damage them, they are available aftermarket.
Step 11) Clean everything gently!
