Motorcycle Questions? Ask a Mechanic.
If this is a factory carb there's a screw that closes off the drain. It may be worn or you may want to coat the threads in liquid pipe thread sealent.
It's #13 in the diagram below
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No, the needle inside the carburetor is not seating in it's seat to shut of fuel flow into the bowl. This could be due to,
1. debris preventing the needle from seating
2. Worn needle and seat
3. Bad float
What I would recommend doing is replacing the needle and seat assembly. (#15 in diagram ) along with it's o ring (#16)
Also check that the float is not crakced and has gas in it.
Hello, just wanted to follow up and see how things went.