[2009 650] Won't start - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 18 Old 03-23-2019, 08:23 PM Thread Starter
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[2009 650] Won't start

Been running fine no problem, one morning this week it won't start.

>Battery kept on tender, reads 12.5v.
>Kickstand up, turn key, all lights come on, gauges, headlight, etc.
>Red fuel switch will trigger fuel pump sound, as normal.
>Hit ignition switch... nothing. Just a slight dimming of headlight

-When hitting ignition switch, battery voltage does not drop below 12.25
-Tried a rolling start; ignition+fuel on, roll down hill, shift into gear, nothing. Just slows to a stop quickly
-Thought perhaps a connector came loose. Removed fairings, dropped radiator. There is ONE 2-pin connector not going anywhere, see photo, circled in red. I can't find any other loose wire to connect to it though.

`Is there a way I can test the starter motor, or the solenoid that is involved with the starting process?
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post #2 of 18 Old 03-23-2019, 08:59 PM
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The unused connector is probably the heated grip connector.

I would open the starter switch and see if it's burned up. Seems you are not activating the starter. If all is well in that switch then it's probably a starter/ starter relay issue. I have no experience with that, fortunately. Others will help.
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post #3 of 18 Old 03-23-2019, 09:12 PM
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My guess is the start button. They handle a lot of voltage and the contacts get burnt. It can be disassemble and cleaned. Search the forum, several threads on it some with pics. A headlight relay corrects the problem. Make sure the battery terminals are clean and tight too.
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post #4 of 18 Old 03-23-2019, 10:51 PM Thread Starter
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Ah the value of bothering to search first. Tomorrow I'll check:

-Inspect clutch switch
-Disassemble, inspect, clean starter switch
-Inspect large white harness plugs
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post #5 of 18 Old 03-23-2019, 11:00 PM
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You can run a couple of quick tests. To check the starter motor simply connect a jumper lead to the positive side of your good bike battery, detach the starter motor cable from its bolt, leave a nut on the starter motor bolt (so an arc does not damage the bolt thread) and firmly touch the jumper lead to the starter motor cable bolt. If the starter motor is OK it will spin the bike's engine.

Another test is to hold the clutch lever pulled in with a zip tie, make sure the side stand is up, ignition on and with a multi meter test for 12v at the starter motor cable when the button is pressed.

If there is no voltage then the suspects are the clutch switch, side stand switch, starter switch or starter relay.

When I had this problem it was caused by corrosion between the starter cable and the starter motor bolt preventing current flow.

It's not a good sign though that the bike would not bump start as mine certainly does.
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post #6 of 18 Old 03-23-2019, 11:58 PM
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That the bike will not bump start makes me wonder about the battery or earth strap connections. Did you check the voltage across the battery terminals, or across the + and - battery straps?

I would not suspect the starter motor as you said that the voltage does not drop when the button is pushed. That indicates a bad connection or switch.

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post #7 of 18 Old 03-24-2019, 04:18 AM
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Do you have a wiring diagram? If not, the diagram attached in the post, https://www.stromtrooper.com/5364659-post38.html, should help you a bit.
https://www.stromtrooper.com/mainten...t-starter.html has some handy info.

Last edited by Gert; 03-24-2019 at 04:34 AM.
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post #8 of 18 Old 03-24-2019, 10:43 AM
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Yes, could be the clutch switch as others have mentioned. Sometimes it's just corrosion at the connector. Just unplug and clean.

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post #9 of 18 Old 03-24-2019, 12:18 PM
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"Been running fine no problem, one morning this week it won't start.

>Battery kept on tender, reads 12.5v.
>Kickstand up, turn key, all lights come on, gauges, headlight, etc.
>Red fuel switch will trigger fuel pump sound, as normal.
>Hit ignition switch... nothing. Just a slight dimming of headlight"


Is the "Red fuel switch" the engine the kill switch? Just want to confirm were talking apples and apples here. People have reported the same issue in the past then eventually realized the the kill switch was in the engine off position. It's likely you haven't overlooked this by reading what you said, I just haven't heard of the engine kill switch referred to as the "Red fuel switch" before.

Good luck, lots of great advice so far!
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post #10 of 18 Old 03-24-2019, 01:18 PM
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Not kill switch, as the pump wouldn't prime if off, would also have a "CHEC" on the display if that or the side stand switch. My best guess is the clutch safety switch, especially if no "CHEC" is being displayed on the dash.
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