Re: 82 Kz650 csr blowing a fuse

Joe mc wrote:
When I turn my key on my 32 amp fuse blows, and I dont have any power at all. Battery is charged. Would it be my regulator/ rectifier? Is there a good way to check it with a mutimeter? I couldn't find any spot where wires were touching the frame or anything. But I didn't look too hard. It was running when I parked it last fall. New battery last summer. But i had to charge it this spring. Anyone got any ideas? Thanks.

You almost certainly have a short circuit somewhere in the wiring loom
(on the switched side of the ignition switch, obviously) to the frame,
due to the insulation on the wire wearing through. The exposed wire is
touching the frame and since the (-) side of the battery is connected
to the frame, you have a 'short' circuit across the battery that's
basically all wire or frame metal and no load, so there's a lot of
current flowing, more than the fuse will pass without melting.

This is what I have done to isolate this sort of problem in the past,
it is reliable and quick and doesn't involve using a meter.

Take basically any 12V light bulb, such as a turn signal or brake light
bulb, or even an old sealed beam headlamp, and wire it up with alligator
clips. Attach the clips across the fuse holder[1], and turn on the
ignition switch. If the short is still present, the bulb will glow
brightly, or dimly, depending on how good the connection is between
the wire and the frame.

Now, wiggle the wiring loom around, when you find the spot[2] where the
short is, the lamp will flicker and may go out altogether. Repair the
worn insulation and make sure it won't happen again by wrapping the
harness with friction tape or use some of that spiral armor covering
stuff.

[1] If you have a newer bike with blade type fuses you'll have to attach
male spade type crimp on connectors to the bulb wiring so you can push
them into the main fuse slot.

[2] I'll bet it will be right near the headstock where the wiring goes
to the ignition switch. I strongly recommend you remove the tank
before trying to wiggle the wiring, because the fault will most likely
be somewhere under the tank.

--
'01 SV650S '99 EX250-F13 '98 ZG1000-A13
OMF #7
.

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