Main Motorcycle: 2012 Kawasaki C14
Join Date: Jan 2007
Location: Vancouver, Wa
Other Motorcycle: 1986 Honda 700s Nighthawk
Well, the old SCR R/R unit draws a lot of current as its a shunt design. Mine would burn you to the touch and was running at 220 degrees.
I would check your R/R out and replace with new MOSFET unit.
Check all your electrical connections especially the battery cables. Clean, tighten and cover with a thin film of grease.
Half Digger - Half Yank that's me