Had a earth leak on my MC18 thats been draining the battery flat in a few hours, discovered if i unplug the M-Max derestriction box it cures the problem. All the wires relating to the box seem fine so im assuming the box itself is at fault. The M-Max has a blue/white wire attached to the orange/blue wire coming from the cdi, it isnt spliced into the orange/blue wire but attached directly to the orange/blue wire and the other end of it taped up, is this correct or should it be spliced?

If this is correct then chances are the M-Max box is fooked so can i just dump the box and perform the wire splice as per instructions for the MC21? i understand the procedure is the same for the MC18 and MC21.