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  #1  
Old 4 Weeks Ago
jp2code's Avatar
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Default 2003 XLH1200 - Tachometer died

The tachometer went out last week. It just stopped working out of the blue. The reading it gave has always been very shakey, vibrating up and down 500 RPM really fast, but I could still read the general engine speed by taking the average value.

When the tachometer went out, I thought it was just finally gone.

I work 6pm to 6am, Monday - Saturday. Usually it has been daylight when I leave, but there were storms this morning, so it was dark. That's when I noticed that the light in the tachometer gauge was also dark. The speedometer light was not. So I'm thinking a fuse blew.

I pull up my Service Manual on my phone to find out where the fuses are on this creature (seriously, I just ride the thing). It was under the seat and accessible without any tools. Great! I took it out and found a fuse was blown. I used the little tool inside to extract the bad fuse, and I replaced it with one of the good fuses also inside the fuse compartment (handy!). When I turned on the power, I heard a pop coming from the general direction of my butt and I knew I didn't fart. The tachometer wasn't working either. I just wanted to get home, so off I rode.

Back home, I pulled it all apart again and the same fuse was again blown.

So, does anyone have any basic checks I could/should do to see what's going on? Or, does the tachometer on these typically go out and cause the fuse to blow?

I don't know. That's why I'm here.
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Old 4 Weeks Ago
kkbii kkbii is offline
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The same thing happened to mine. The wire was pinched at the triple trees where it goes into the headlight or harness, not sure. I put a resetting fuse in till it showed me where to fix it. A bad wire at the key switch can cause this also.
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Default

The power wire to the Tachometer is ORANGE (from the Instrument Fuse)

That ORANGE wire also powers the NEUTRAL & OIL INDICATORS... (which should now be not working with a blown fuse)

Sometimes the wires get small cuts if the grommet is worn thru and allows the wires to contact the headlight bucket... That allows the wires to ground out...

You can put an ohm meter on the output side of the fuse (remove the fuse) - measure resistance to a ground point - it should be close to '0' ohms if it's shorted - Then wiggle the wires around or loosen clamps or brackets to find when the short goes away...

Have you done anything recently in the handlebar area or the headlight?

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Old 3 Weeks Ago
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Thanks.

The shielding to the wire had worn through at the handle bar clamp area.

I put a little electrical tape over the exposed area, and the problem has gone away.
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