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post #1 of 10 (permalink) Old 12-20-2008, 03:35 PM Thread Starter
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Starter Solenod (relay)

OK folks, I just got in a "new" starter solenoid from ebay (salvage yard). I am hoping it is not bad but I cannot get a click noise to issue from it at all when I the the start button.

I checked the wires going into the solenoid (the little ones) for power when I push the start button. As soon as I touch the Y/R wire coming from the JBox to the solenoid I get a .5V DC reading on my multimeter, when I hit the start button it goes up to a max of about .8VDC.

Here is the odd part, this only occurs if the wires are NOT connected to the solenoid. as soon as I connect them to the spade connectors, the reading goes to 0 Volts and stays there EVEN when I press the start button.

Any thoughts?


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1994 VN750
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post #2 of 10 (permalink) Old 12-20-2008, 03:49 PM
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sounds like your start button isn't sending juice..or the JB starter realy circuit is on the fritz
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post #3 of 10 (permalink) Old 12-20-2008, 06:58 PM
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You can test the new to you solinoid with a couple of jumper wires straight off the battery. When you know it is good then you can check the rest of the circuit as mentioned by svr.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/11-vn750-general-discussion/9127-top-ten-items-you-would-suggest-new-owner-do-his-new-ride.html
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post #4 of 10 (permalink) Old 12-21-2008, 12:15 AM
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The manual tells you how to test the relay like OlHossCanada says to do
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post #5 of 10 (permalink) Old 12-21-2008, 08:50 PM Thread Starter
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Hoss or Slim (or anyone else for that matter)

Can you post the instructions for testing the solenoid. I have the Kawa Service maunal but the instructions in there are a bit hard to follow.

Any thoughts on why the current would drop when the spade is connected vice not as descirbed in my first post?


http://profile.imageshack.us/user/Fester42
1994 VN750
Tins/Head lamp - flat black
Front fender ditched
Rear fender bobbed
Powder coated rims
Recovered seat
Progressive 11.5" shocks
Progressive fork springs
Jardine "rumbler" exhaust - wrapped
Relocated horn
12" Z-bar ape hangers
MF Battery
Motion Pro Throttle Cables
Venom 110/90-19 170/80-15
Side mount License Plate/ Brake Light
Aftermarket signals
Speedo - Acewell
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post #6 of 10 (permalink) Old 12-21-2008, 09:09 PM
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Run 12 volts to the post that makes the soleniod click. Just use wire from your bike batt. This will by pass all the safety switches. If the batt is up and the starter is in working order this should make the engine turn over. Also you may try to turn the engine to make sure it is not locked down.

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post #7 of 10 (permalink) Old 12-22-2008, 07:27 AM
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HERE is a document talking about relays...
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post #8 of 10 (permalink) Old 12-23-2008, 02:11 AM
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Quote:
Originally Posted by nOObbobber View Post
Hoss or Slim (or anyone else for that matter)

Can you post the instructions for testing the solenoid. I have the Kawa Service maunal but the instructions in there are a bit hard to follow.

Any thoughts on why the current would drop when the spade is connected vice not as descirbed in my first post?
Some connection is not giving the juice as Slim said, or your battery is only giving off .8 volts. The reason your volt reading drops to zero when connected to the relay is because .8 volts is nowhere near the 12 it should get, and insignificant enough to get eaten completely by that big electromagnet/coil on the relay. Good luck, and let us know how it goes.

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post #9 of 10 (permalink) Old 12-23-2008, 03:20 AM
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Quote:
Originally Posted by tincanman View Post
Some connection is not giving the juice as Slim said, or your battery is only giving off .8 volts. The reason your volt reading drops to zero when connected to the relay is because .8 volts is nowhere near the 12 it should get, and insignificant enough to get eaten completely by that big electromagnet/coil on the relay. Good luck, and let us know how it goes.
Check battery voltage, need 12-13 volts not running. Run one jumper wire from pos battery terminal to one spade terminal on starter solenoid. Run second jumper from neg terminal to the other spade connector. If no click, reverse wires on solenoid spade connectors. Still no click, the relay is no good. If it clicks in one or both positions, it is good. Check starter switch, engine kill switch, sidestand switch, neutral switch, all connectors are clean, tight and protected with dielectric grease, and all wires are sound, with no cracks in the insulation, worn thru or pinched and shorting out.

Let us know how the solenoid/relay checks out. svr or someone else may be able to give more info on trouble shooting the wireing harness and switches.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/showthread.php?t=9127
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post #10 of 10 (permalink) Old 12-23-2008, 08:36 AM Thread Starter
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Quote:
Originally Posted by OlHossCanada View Post
... Run one jumper wire from pos battery terminal to one spade terminal on starter solenoid. Run second jumper from neg terminal to the other spade connector. If no click, reverse wires on solenoid spade connectors...
Voltage on Battery is good running at 12.7, brand new big crank MF AGM battery.

Can I test the relay in the manner Hoss describes without the main posts being connected to the battery and starter? Or will this short out the realy? I currently have two of them... one is connected to the scoot wired up properly and all that the other is the "new to me" relay that is completely diconnected. I will try them both and see what happens, but is sounds like I have an issue in the Jbox regardless if there needs to be more voltage runninf though the wires than .8 Volts.

**** UPDATE *****

Relay is ok... so I am guessing it is downstream from the relay between the jbox and further on...


http://profile.imageshack.us/user/Fester42
1994 VN750
Tins/Head lamp - flat black
Front fender ditched
Rear fender bobbed
Powder coated rims
Recovered seat
Progressive 11.5" shocks
Progressive fork springs
Jardine "rumbler" exhaust - wrapped
Relocated horn
12" Z-bar ape hangers
MF Battery
Motion Pro Throttle Cables
Venom 110/90-19 170/80-15
Side mount License Plate/ Brake Light
Aftermarket signals
Speedo - Acewell

Last edited by nOObbobber; 12-23-2008 at 10:49 PM.
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