50 Yama front p hole tube?

[Big-G]

The schematic shows the tube coming from under the cowling and clamped down with a clip attached to a grease fitting that may be for the steering rod encasement. Cannot follow tube (using schematic) beyond the cowling.

I do remember a similar tube my older motor - 1985 Mariner. The southern end threaded through the lower unit and could have been there to provide water pressure to the Northern end of the tube. I didn't pursue it further because the motor always performed to expectations.

G