The throttle and choke cables on Yamaha are longer than most, because they go inside the frame, first way down low, then up high and then down again, like a roller coaster. That gives the bike a clean look, and a convenient low step-thru frame. But the bottom low part traps water. This happens with many other cables that go way low then up, like all scooters have.
1979-87 Yamaha QT50 choke cable $22