Voltmeter Installed - Need a Sanity Check... - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 14 (permalink) Old 07-14-2011, 10:27 PM Thread Starter
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Voltmeter Installed - Need a Sanity Check...

Got my voltmeter install buttoned up today. Went with the Autometer 3391 gauge & 2203 chrome pod. Installed using a relay with constant power from the spare +12V constant feed in the headlight bucket and grounded through the spare ground lead in the bucket as well. The relay trigger feed and gauge light are fed through a tap into the front marker light. Looks sweet as can be and works like a charm.

Was planning to feed and ground the gauge from the battery tender lead direct to the battery, but when I check static voltage as well as idle voltage at both locations, the bucket feeds showed the exact same measurements as the battery tender lead, so I figured why go through the fuss of the extra work & wiring. Function check static & at idle confirmed that the gauge & my digital voltmeter are in sync, and the gauge can be relied upon for an accurate reading.

All that said to get to the point: Idle voltage is about 13.3V-13.4V at initial startup; idle voltage after driving, like while cruising up to a stop light is right at 14V; and powered the voltage climbs to 15V-15.2V at 2500 rpm and stays there from then on...

Does this sound normal...?

Thanks,

'98 VN750, Mustang Seat, F&S Engine Guards, Highway pegs, Pro-Tac backrest, Harley 58121-85B windshield lowers, Autometer 3391 voltmeter, ACCT to MCCT, pickup coils at 0.020", Coasters, National Cycle N2220, Vista Cruise Universal, Single Filter Ear Shave, Givi Monokey Sidebag Mounts, Givi E21 side bags, Knifemaker style turn signal relocation, helmet locks relocated.
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post #2 of 14 (permalink) Old 07-14-2011, 10:41 PM
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Your reading seem a bit high. Did you try a volt tester to compare the gauges readings?

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post #3 of 14 (permalink) Old 07-14-2011, 10:56 PM Thread Starter
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Originally Posted by abyssdncr View Post
Function check static & at idle confirmed that the gauge & my digital voltmeter are in sync, and the gauge can be relied upon for an accurate reading.
They seemed a bit high to me as well, thus the question. Forgot to mention that I just installed a fresh AGM battery last week. The readings weren't nearly this high with the old battery...?

'98 VN750, Mustang Seat, F&S Engine Guards, Highway pegs, Pro-Tac backrest, Harley 58121-85B windshield lowers, Autometer 3391 voltmeter, ACCT to MCCT, pickup coils at 0.020", Coasters, National Cycle N2220, Vista Cruise Universal, Single Filter Ear Shave, Givi Monokey Sidebag Mounts, Givi E21 side bags, Knifemaker style turn signal relocation, helmet locks relocated.
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post #4 of 14 (permalink) Old 09-06-2011, 06:18 PM
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Do you have any pictures of the install?
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post #5 of 14 (permalink) Old 09-06-2011, 08:02 PM
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Quote:
Originally Posted by abyssdncr View Post
Got my voltmeter install buttoned up today. Went with the Autometer 3391 gauge & 2203 chrome pod. Installed using a relay with constant power from the spare +12V constant feed in the headlight bucket and grounded through the spare ground lead in the bucket as well. The relay trigger feed and gauge light are fed through a tap into the front marker light. Looks sweet as can be and works like a charm.

Was planning to feed and ground the gauge from the battery tender lead direct to the battery, but when I check static voltage as well as idle voltage at both locations, the bucket feeds showed the exact same measurements as the battery tender lead, so I figured why go through the fuss of the extra work & wiring. Function check static & at idle confirmed that the gauge & my digital voltmeter are in sync, and the gauge can be relied upon for an accurate reading.

All that said to get to the point: Idle voltage is about 13.3V-13.4V at initial startup; idle voltage after driving, like while cruising up to a stop light is right at 14V; and powered the voltage climbs to 15V-15.2V at 2500 rpm and stays there from then on...

Does this sound normal...?

Thanks,
Those voltages do sound high for a stock R/R, but close for a Shindigen/mosfet.
Have you installed one of those?

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
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post #6 of 14 (permalink) Old 09-06-2011, 08:06 PM Thread Starter
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Originally Posted by OlHossCanada View Post
Those voltages do sound high for a stock R/R, but close for a Shindigen/mosfet.
Have you installed one of those?
Nope, still the factory R/R, just relocated...

No pics of the actual install (wiring), but if you want an installed pic, I can probably work on one of those...

'98 VN750, Mustang Seat, F&S Engine Guards, Highway pegs, Pro-Tac backrest, Harley 58121-85B windshield lowers, Autometer 3391 voltmeter, ACCT to MCCT, pickup coils at 0.020", Coasters, National Cycle N2220, Vista Cruise Universal, Single Filter Ear Shave, Givi Monokey Sidebag Mounts, Givi E21 side bags, Knifemaker style turn signal relocation, helmet locks relocated.
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post #7 of 14 (permalink) Old 09-06-2011, 08:06 PM
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Sounds ok to me. My voltmeter read 15.5 volts now and then. As long as you are over 13.1 volts you should be happy.

Keep in mind the accuracy of your equipment...

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post #8 of 14 (permalink) Old 09-06-2011, 08:20 PM Thread Starter
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Originally Posted by Knifemaker View Post

Keep in mind the accuracy of your equipment...
Fair comment. I figure that since it hits max voltage at 2500 rpms and holds steady from there on up, it's probably good to go.

A person probably shouldn't complain when the vehicle actually performs as it's supposed to, right...?

'98 VN750, Mustang Seat, F&S Engine Guards, Highway pegs, Pro-Tac backrest, Harley 58121-85B windshield lowers, Autometer 3391 voltmeter, ACCT to MCCT, pickup coils at 0.020", Coasters, National Cycle N2220, Vista Cruise Universal, Single Filter Ear Shave, Givi Monokey Sidebag Mounts, Givi E21 side bags, Knifemaker style turn signal relocation, helmet locks relocated.
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post #9 of 14 (permalink) Old 09-06-2011, 09:13 PM
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Quote:
Originally Posted by abyssdncr View Post
A person probably shouldn't complain when the vehicle actually performs as it's supposed to, right...?

There you go...........

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post #10 of 14 (permalink) Old 09-06-2011, 10:35 PM
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I would call it on the high side of normal. If it went over 16 I'd be concerned. Would you post a pic of how it looks on there? Did you mount it between the tach and speedo?

Dave

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Jetted, shaved & coastered
Home made under-tank single filter
Converted ACCT's to manual (thanks wib714)
Dual vac lines on petcock (my cure for ticking)
LED tail/plate lights
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Added stuff:
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Home made 'Vita-Volt' meter
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Tunes

Hmm....she was on the back when we left.... ??
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