Toggle switch, what does it do?

[boscoe99]

The switch you are referring to, on my 90TLRR anyway, energizes the starting enrichment solenoid (Like a choke). If you look on the right side of #2 carburetor, you should see a little red switch with three positions, normal, emergency, and off. Connected to that guy is a solenoid that should resemble this [ATTACH]2229[/ATTACH]. When you push your switch, the solenoid energizes, and adjusts the enrichment for starting, just like a choke.

What specific model motor have yee?

I think you have an electro-mechanical choke confused with a Primestart device. But not to worry. You are not the first. In a number of Yamaha's the toggle switch, or the press-to-choke- function on some Yamaha key switches, does absolutely nothing.

Some think their motor starts better using the switches. If you are one of these, keep using it.

[99yam40]

Yep if you do not hear the click when hitting the switch it is not doing anything