No Start, Pulsing Ignition Cluster Lights - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 10-21-2008, 06:08 PM Thread Starter
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No Start, Pulsing Ignition Cluster Lights

I had something odd happen today. I was riding for about 30 minutes, my analog voltmeter indicating around +14v. As I slowly came up my driveway (a slight incline), I stalled a couple of times. I restarted immediately the first time, but the second time, nothing.

Now, the green neutral and the red light on my instrument cluster just pulse on and off weakly. When I press the start button I only get a click. My voltmeter still reads around +12v. I made a short video of the pulsing, but it's about 1.5MB. Too large to upload.

Regards,
Pete in Gaithersburg, MD

1996, 6,000 miles
Relocated R/R, Corbin seat, Plexifairing III, Sunpro Voltmeter, Sears MF.
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post #2 of 11 (permalink) Old 10-21-2008, 06:22 PM
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sounds like a bad ground
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post #3 of 11 (permalink) Old 10-21-2008, 06:33 PM
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Like slim said most likely a bad ground or connection. Check battery first, grounds,wire to starter, see if starter relay is getting power. You have a lot of connection to test, the battery seem to be okey with 12v readings. What kind of reading on voltmeter when you try to start the engine? If you get a real low reading, could be a weak battery or a short. How old is the battery and is it a gel battery.

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post #4 of 11 (permalink) Old 10-21-2008, 07:40 PM
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Quote:
Originally Posted by slimvulcanrider View Post
sounds like a bad ground
Just for my edification, Slim, how does the description of the problem indicate a bad ground to you? That there's still power going out of the battery at least to the solenoid, but "pulsing" lights indicate a periodic loss of voltage between the bat and the cluster? Just curious - electrical stuff is really my achilles heel.
Thx

C
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post #5 of 11 (permalink) Old 10-21-2008, 07:54 PM
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Pulsating indicator lights, weak battery voltage, solenoid clicking...classic examples of a poor ground....Weh44att said...negative battery cable would be the first ground spot to check, fallowed by the main ground wire on the frame.
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post #6 of 11 (permalink) Old 10-21-2008, 08:01 PM Thread Starter
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Many thanks. I just poked around and found that my heavy ground from the battery to the frame had loosened. Cleaned and tightned, the lights came on strong and steady and she started right up.

Why do you think the instrument lights pulsed the way they did? That was kind of odd.

Regards,
Pete in Gaithersburg, MD

1996, 6,000 miles
Relocated R/R, Corbin seat, Plexifairing III, Sunpro Voltmeter, Sears MF.
Xelement X840 Saddlebags
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post #7 of 11 (permalink) Old 10-21-2008, 08:26 PM
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the loose wire was causing the pulsating look...actually the lights were turning on and off real fast
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post #8 of 11 (permalink) Old 10-21-2008, 09:14 PM
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Good catch, Slim. Quick and easy fix, only because someone on this forum gave an educated answer to a fellow biker's question. Pete could have been pulling his hair out over this, or spending $$ at some stealership to get it fixed.

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post #9 of 11 (permalink) Old 10-22-2008, 12:40 AM
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Quote:
Originally Posted by slimvulcanrider View Post
Pulsating indicator lights, weak battery voltage, solenoid clicking...classic examples of a poor ground....Weh44att said...negative battery cable would be the first ground spot to check, fallowed by the main ground wire on the frame.
Good catch weh44att and slimvr. That`s a good reminder for all of us, new rider or not, to check all our electrical connectors, grounding points and bolts on a regular basis. It is sure a lot easier to learn where they are, and what to do at home, in the daylight, when it is warm and dry, than out on the road in the dark and wet and cold.

One more reason for those not mechanically experienced to start learning how to do some of the regular maintenance and minor repairs on your own bike. Every car or truck I have ever owned had some unique issue that I learned to recognize. Then when it started to act up, I knew what to tighten or wiggle or tap to get on my way. Our bikes are likely to have their own similiar issues.

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post #10 of 11 (permalink) Old 10-22-2008, 07:49 AM
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I agree totally!! I had been having some starter problems nothing I was too concerned about, she always started just turned over a little slow. So when I had my seat off to to replace plug wires I checked my connections. Wadda you know the frame ground was loose, installed SS bolt and lock washer problem solved. It also fixed my occasional erratic tachometer. Now she starts by barely pressing the starter switch. Life is sweet! Don't ride bitter!


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Last edited by lance328; 10-22-2008 at 07:58 AM.
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