http://www.pinwiki.com/wiki/index.php?title=EM_Repair#Adding_an_On.2FOff_Switch_to_an_EM

or, to preserve the originality of the game, can just plug it into a power strip.

.....There's always that...

My Buckaroo won't come back on with the power strip, only shuts it off. I have to reach in the coin door and trip it. I'm pretty sure it is on free play, and there are usually still credits on the game when I turn off the power strip. ???

If it's truly on free play, then pressing the replay button on the front of the coin door should power it back on (and start a game in the process). A toggle switch alone won't turn power back on for this era of game; the Hold relay needs to be bypassed too. Left as original though, they require either a coin switch to close, or the replay button (which is activating the Start relay) in order to power back up.

Thanks, I'll take a closer look it when I see it again. Next week hopefully.

if it gets powered down while the score motor is running then it may be stopped mid cycle and not be powered back up with a button push. But yea dont add a toggle switch, sacrilege!