Having electrical problems, re-wiring questions. - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 5 Old 10-17-2010, 04:01 PM Thread Starter
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Having electrical problems, re-wiring questions.

My bike turned itself off and I saw a puff of smoke come up from under the gas tank. After stripping it down, there's nothing obviously burnt. No blown fuses either. Nothing appears to be wrong, the key turns on and I have power. Before this happened the voltage started dropping and my mounted GPS got a low battery warning.

I'm adding some new heated gear this season, so it's an opportunity to re-wire all my accessories. Instead of running power+ground for every device, I want to clean up my wiring and run a single ground wire to the front: GPS, heated grips, heated gloves & jacket, heat-troller, power outlet. What gauge wire should be enough for a ground. Or is it better to run separate ground wires? Everything goes into a fuse block under the seat, so it doesn't seem like a bad idea.

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post #2 of 5 Old 10-17-2010, 05:10 PM
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Quote:
Originally Posted by bobosmite View Post
What gauge wire should be enough for a ground.
that would depend on how many amps your going to draw thru it

I've got a ground strip mounted on the battery side of the tray under the seat and all my positives go into the tray and into my auxillary fuseblock

I have all my power cables(both + & -) to V-1, 12 outlet, GPS and audio cables from bike to bike, PTT switch, GPS,V-1 & bluetooth module to my Autocom unit under the seat, bundled together inside a 3/4" dia split seam conduit running right along the top of the frame on the left side

I run the fused pigtail from my heated gear directy to the battery, and a standard fused SAE pigtail as well, I use that to plug in battery tender or 12v outlet adaptor for my slime compressor, cell phone charger, etc. The 12v outlet on my dash is switched power source



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post #3 of 5 Old 10-18-2010, 10:57 AM Thread Starter
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I'm still troubleshooting an electrical problem before re-wiring. I have to sort it out before adding the new gear. I've traced it down to something connected to the blinkers/brakes circuit.

When I turn on the blinkers or brakes, the voltage goes up and down wildly, but all within 1v. The battery and fuse block drops about .1v steady. I know there was a puff of smoke that came up from under the forward part of the tank, behind the radiator. I didn't see anything obviously burnt behind the radiator shroud. Are the blinkers and brakes on the same circuit? If so, where does it pass behind the radiator?

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post #4 of 5 Old 10-18-2010, 11:15 AM
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Both run off the signals fuse. The hot wire feeds are O/G in color code. Check the connectors behind the radiator. The wiring from the handlebar switches connects there.

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post #5 of 5 Old 10-18-2010, 01:50 PM Thread Starter
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I got access to the connector behind the radiator. Open the connector and the voltage on the horn wire reads .1v less than the battery. When I close the connector, it drops a full 1v and using the turn signals causes it to go up and down wildly. I'm reasonably sure that means the problem is between the connector and the switch on the handlebars. Right?

<edit> I tested continuity according to the manual for left, right, and hazard. They worked normally, opening and closing, but I couldn't find any information on the other pins in the connector.

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Last edited by bobosmite; 10-18-2010 at 02:01 PM.
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