The starter relay has a power circuit and a control circuit.
Battery positive power is provided directly to one side of the power circuit. See the diagram above.
When the starter button is pressed, battery power is provided to the relay control circuit via the neutral safety switch. This...
The starter button should only be providing current to the relay when the starter button is pressed. Press in, relay closes, power is provided to the starter motor. Starter motor then cranks the main motor. Let off the button and current stops flowing to the relay. Main motor then runs while the...
Have you looked at the kit that Yamaha has available for what I am guessing to be your motor?
I am not seeing a neutral safety switch in your illustration.
What is the complete model of the motor? What is the precise part that you want to paint?
On a 26 year old motor it is going to be tough to come up with a new paint that matches worn and faded paint.