nighthawk 550 electrical problem

Krusty,

Part B of further testing. I just finished testing tha
involves the switched 12V supply input to the rectifier and based o
the results I got the electrex chart says that I have a bad connectio
from the battery(+) through the ignition switch to the rectifier. I
just so happens that they say this is the most difficult to find. An
advice would be most helpful

 

The DC output from rectifier ordinarily goes straight to the battery
positive terminal, and another wire will go to the main fuse in the
fuse block. From there, the power will normally go to the ignition
switch, and when you turn the ignition switch on, power will go back to
the other fuses in the fuse box.

If the DC power has to go through the ignition switch before it can get
back to the battery, that means you would have up to 25 amps at 12
volts going though the ignition switch!

I recommend verifying Electrex's assertion involving the ignition
switch by studying the wiring diagram in your owner's manual. If the
battery charging current does in fact go through the ignition switch, I
recommend touching the back side of the switch very carefully after the
engine has been running a few minutes. If the wires on the switch are
getting hotter than hell, the switch may be your problem. I have burned
up two ignition switches on different vehicles before...