Just finished installing an msd ready to run distributer in my brothers boat. Changed out the coil and found the brown wire that goes to the tack and swapped it to the green wire from the dizzy. The other brown wire that goes to the shift switch gets grounded when shifting to reverse but there seems to be no drop in rpms. Both brown wires went to the neg. side of the coil. I am not sure if I am needing to wire something different or add something to get the rpms to drop when shifting into gear? Anyone have any ideas or have run into this before?