I recently purchased a new 04 - TTR125L. Upon bringing it home I found that fuel runs out of the overflow line continuously.
Even with the fuel shut off valve in the closed position, fuel was still running out. I took apart the shut off valve and found the rubber gasket was damaged. I will replace this once I can get to an open Yamaha dealer.
I took apart the carb suspecting some dirt between the needle and seat. All was clean. I reassembled and fuel is still flowing when running and shut down.
What should I look for next? I can not have fuel leaking onto the garage floor every night. If I can not get it sorted out, it will be going back to the dealer for some work.
Any advice would be appreciated.
Discouraged new owner