Guzzi schematics show just one coil in the solenoid connected from the spade connector to ground (Chassis)
There are in fact two coils, the one shown and another between the spade connector and motor Brush
The first coil has a resistance of `1.05 Ohms (this will draw 12Volts/1.05 Ohms = 11.4 amps)
The other coil they don't show has a resistance of only 0.25 Ohms (this will draw 12 Volts/0.25 Ohms = 48 Amps)
The combined current at 12 Volts will be ~59 Amps but to get that you need a low resistance from battery to relay, relay to solenoid.
Unfortunately the ignition switch on most Guzzi's will get dirty with time adding too much resistance to support the high current.
MPH came up with a solution to that by providing a hot wire from battery Positive thru a fuse to the relay.
However the MPH kit does nothing about the wimpy wire from the relay to the solenoids spade connector, in most cases that may be ok but I upsized that on my Griso and the solenoid was able to close in about half the time it took previously. (I measured this with an oscilloscope.
