Wiring Issue? Running lights

[Canidriveit]

First post! Very excited.

So I have what I believe is a wiring problem. When I turn on the ignition on my 2005 gz250, the tail running light does not come on. However, the front right turn signal lamp does come on and stays on without flashing. When I signal to the right, that bulb stays on but does flash.

I'm guessing someone at some point accidentally wired that signal lamp into where the running light is supposed to go. Does anyone else agree / disagree? I found a service manual pdf for download and I'm prepared to start hunting for the offending connection.

I should add that the brake light does come on.

Thanks in advance for any tips and advice!