On Off Switch

[GSJimbo]

got a simple question, on my dragbike i want a on off switch, do I wire it in to the red + wire going from the battery to the MSD box or the Ground black wire?

[lecroy]

Both my MSD MC-1 and now the MC-4 have two power connections. One to the battery, the other to the ignition switch. All of the manuals are on-line at MSD Powersports.

That said, I use a very large relay that's controlled by the ignition and dead man switches. The relay is in series with the battery and powers everything (including the MSD battery connection).