As far as I know the seat is not replaceable. I don't know that they really get worn, but they may get corroded over the years from fuel going bad. Before you junk the carb tho, you may be able to dress up the seating surface with a dremel stone or a small drill bit. I've pulled this off a few times, but only as a last resort. DO NOT put either in a dremel or any kind of machine. GENTLY spin the stone or drill bit between your finger tips to LIGHTLY clean up and resurface the seat area for the needle.
Bonus points for you if you can shape the dremel stone to match the tip angle of the needle. It also helps to have on of these to see if your work is smooth where the needle will sit:
Attachment 164129
Some may laugh, but I've been using one of these for years for very small close up work. Now that I'm approaching geezerdom, it comes in even more handy.
Originally Posted by Scootertrash
First Time Rider
Arm chair racerNew to the board
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