Where to start? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
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post #1 of 24 (permalink) Old 08-24-2013, 06:44 PM Thread Starter
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Where to start?

I acquired a '90 750 a couplr of days ago.

Today, another guy hooked it up to his truck battery to see if we could get any sign of life. Nothing. Ignition switch at the key is pretty rough. That's my first inclination. Also battery cables are pretty worn...

Thoughts?
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post #2 of 24 (permalink) Old 08-24-2013, 08:52 PM
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ignition switch, then handle bar switches, all wiring harness connections, battery connections...Clean them ALL
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post #3 of 24 (permalink) Old 08-24-2013, 09:58 PM Thread Starter
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Ok...update.

Pulled the tank, seat, etc. to get a look at what's going on in there....not pretty....a couple of years worth of dirt, hornets nests, etc. Looks like everything is intact. Will clean tomorrow and et out the multimeter to check continuity....

I still think there is a problem in the key...might bypass to see.
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post #4 of 24 (permalink) Old 08-24-2013, 11:04 PM
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Search foot cleaning the ignition switch... It is very ready to do, and repair. Also a bad battery (even jumped) will make it almost impossible for the starter to turn over unless you jump to the stater side of the solenoid.

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post #5 of 24 (permalink) Old 08-24-2013, 11:56 PM Thread Starter
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Thanks, I'll pull the switch out of the dash tomorrow and check it out.
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post #6 of 24 (permalink) Old 08-25-2013, 12:29 AM
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I would take those jumper cables, clamp the negative one to the frame somewhere, and touch the positive one to the terminal on the starter. It should turn over. Watch out for sparks, and be VERY careful you do not touch the starter housing or frame with the positive cable. If it turns over that way, that shows the engine will turn over, and the starter works. That's good. From there get a manual and a multimeter and start tracing. I use one of those portable jump start packs in place of the battery is you are pretty sure the battery is bad. Remove the battery, connect the black clamp to the frame, and the red one to the positive battery cable, again making SURE the red cables do not ground out against anything. You can now start testing switches, relays, connections, etc. without having to buy an expensive new battery until you get it all sorted out.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
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post #7 of 24 (permalink) Old 08-25-2013, 06:36 PM Thread Starter
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Pulled the lead off the starter motor, attached the positive to the post...nothing. Could the starter motor be frozen from sitting? Does it need a nudge...starting to be concerned that this could get very ugly....
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post #8 of 24 (permalink) Old 08-25-2013, 07:26 PM Thread Starter
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Nevermind!!! Tried a different set of cables and we turn over! The rest of the electrical is a mess...or seems that way. Next ill pull the ignition switch, clean, and put it to the meter.
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post #9 of 24 (permalink) Old 08-25-2013, 09:07 PM Thread Starter
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The ignition switch is a mess...the puck is broken off at the bottom....guess it will get replaced. Giving thought to repositioning back near battery. Anyone done that and have a great suggestion for replacement ignition switch?
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post #10 of 24 (permalink) Old 08-25-2013, 10:06 PM
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Might as well leave the ignition switch on the dash. If you move it you will end up with a empty hole in the dash and unprotected wires where ever you move it too.

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