There is one plug on each side of each cylinder, for a total of 4.
You will need a thin walled socket.
For battery removal, open the toolbox, remove the two bolts in the rear of it.
Lift the seat, there's the battery. Remove the hold down clamp, disconnect the negative cable first, then positive. This should eliminate any chance of sparks if ya happen to bump something while doing the positive cable.
Pull out the battery.
When reinstalling the new battery, pay close attention to the vent tube to be sure it is routed all the way through to the swingarm area in the middle of the bike without any kinks.
This is just a quick run down, any other questions, just ask.
AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC
"When life throws you curves,
Aim for the apex."