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Starter motor voltage (Read 159 times)

marekbuk Full Member Offline SuzukiSavage.com Rocks! Posts: 158 West Yorkshire, UK Gender:	Starter motor voltage 07/27/17 at 12:44:41 guys - anyone with an idea why that when I switch on the ignition and before pressing the starter button I measure 5.5v at the starter terminal ? - jumping to 12.5 v when the starter button is pressed.
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Gary_in_NJ Serious Thumper Offline LS650 Cafe Racer Posts: 2633 Amongst the Twisty Roads	Re: Starter motor voltage Reply #1 - 07/27/17 at 13:41:54 A slightly fried starter solenoid. Not fried enough that it has stopped to function, but fried enough that it has a voltage leak. If you disconnect the signal (ground or switch side) does the voltage leak go away?
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28889 L.A. California Gender:	Re: Starter motor voltage Reply #2 - 07/27/17 at 14:31:24 Dirty lead? check your ground.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Starter motor voltage Reply #3 - 07/27/17 at 14:33:00 Exactly where are you measuring?
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marekbuk Full Member Offline SuzukiSavage.com Rocks! Posts: 158 West Yorkshire, UK Gender:	Re: Starter motor voltage Reply #4 - 07/28/17 at 00:55:21 I'm measuring at the terminal post on the starter motor
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marekbuk Full Member Offline SuzukiSavage.com Rocks! Posts: 158 West Yorkshire, UK Gender:	Re: Starter motor voltage Reply #5 - 07/28/17 at 02:21:17 Gary! - I just disconnected the switch and ground side and still get the leak when switching on the ignition - puzzling as there is no other connection to the solenoid
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Gary_in_NJ Serious Thumper Offline LS650 Cafe Racer Posts: 2633 Amongst the Twisty Roads	Re: Starter motor voltage Reply #6 - 07/28/17 at 04:50:58 You could try disconnecting the negative battery cable and then reconnect it to see if it clears the problem. But even if it does it will probably return after one starting cycle. Is there a drain on the battery?
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Starter motor voltage Reply #7 - 07/28/17 at 07:12:10 Don't sweat the momentary spike. Get the other issues figured out. The battery is not right. Is it lead acid? Checked the water? Had it tested? Start with the battery Then see
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marekbuk

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Posts: 158
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Re: Starter motor voltage
Reply #8 - 07/28/17 at 10:08:06

Gary - disconnected the battery and charged it - no change

Justin - it's got a posh Li-Lon lightweight battery fitted - it's even got a test button on it with x3 blue led's showing state of the battery - fitted by previous owner when he 'chopped' the bike

I've disconnected all the loom connections, cleaned and refitted with no change

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Starter motor voltage Reply #9 - 07/28/17 at 10:20:35 Posh gets a warranty. Because even Posh can fail. Start with proving the battery.
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marekbuk Full Member Offline SuzukiSavage.com Rocks! Posts: 158 West Yorkshire, UK Gender:	Re: Starter motor voltage Reply #10 - 07/28/17 at 10:25:26 Bike starts fine on the battery - I've cleaned the terminals - it's just annoying that there seems to be a leak to the solenoid when the ignition is switched on
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Starter motor voltage Reply #11 - 07/28/17 at 11:00:48 Is it a Transient Reading or does it stay at five volts until you hit the button?
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marekbuk Full Member Offline SuzukiSavage.com Rocks! Posts: 158 West Yorkshire, UK Gender:	Re: Starter motor voltage Reply #12 - 07/28/17 at 11:41:44 It stays steady at 5.5v
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Starter motor voltage Reply #13 - 07/28/17 at 11:45:57 marekbuk wrote on 07/28/17 at 00:55:21: I'm measuring at the terminal post on the starter motor Is it still there after it's started?
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marekbuk Full Member Offline SuzukiSavage.com Rocks! Posts: 158 West Yorkshire, UK Gender:	Re: Starter motor voltage Reply #14 - 07/28/17 at 11:57:08 That's something to check tomorrow- will post result
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