Beyond the edge is the unknown. Here be Dragons
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- Kansas City Mo.
So long as the power to the starter solenoid circuit is supplied via the ignition circuit on R/W wire (as all models are) the kill switch and key switch will act as "fail-safe" should the starter button "stick"/fail. The safety relay doesn't add extra protection in that regard. The only way you're gonna result in the starter motor running continuously is for the solenoid to stick closed mechanically and the safety relay won't affect that either.My main concern is when this switch is defective there could be a permanent working starter motor.
Hmm Think all the Yamaha's I've seen use the starter button to supply ground to the solenoid. A button that's not on the bars creates some issues on an old school carb bike where you want to be manipulating the throttle during the start sequence.On models 306, 366 and 476 the safety relay switches the positive wire to the starter button and from there it goes to the starter relay
Nope. It alternates...4G why do you say AC relay? The yellow wire should be more or less steady
Nope. Again, It alternates.If the voltages are three symmetrical sine waves evenly spaced, the center voltage should be constant
I was going to show mathematically why the yellow wire stays at 1/2 the peak to peak voltage...
Of course you're right about the button, however you skipped a yr's diagram: the one that shows the safety relay switching ground: 1974. IDK, memory fails, maybe this diagram is wrong??.......View attachment 233019View attachment 233020
Hmm Think all the Yamaha's I've seen use the starter button to supply ground to the solenoid. A button that's not on the bars creates some issues on an old school carb bike where you want to be manipulating the throttle during the start sequence.