December 8th, 2015, 08:07 AM | #1 |
ninjette.org certified postwhore
Name: Tom
Location: Northern Virginia
Join Date: Jul 2015 Motorcycle(s): 2001 Ninja 250, 2019 Harley Ultra Classic, 2001 Suzuki SV650 Posts: A lot.
MOTM - Jan '16
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Loose Wire, thoughts on where?
So I have something loose, but what.
Here is what happens, running down the road at speed is fine, but at slow speeds now several times, most of them when I go over a bump in a parking lot or in heavy traffic, the bike just shuts off, headlight off, no oil or gear indicator lights, nothing. I turn the key off and on a few times and suddenly it starts working again, starts up and I ride off. Battery cables are tight at the battery, haven't checked anything else. I'm thinking maybe ground wire where it connects to the frame/engine. What else could it be? I'm not blowing the main fuse, but I guess it might be loose too. Is there a main circuit breaker that resets automatically? I did check the kickstand switch, it doesn't seem to be connected at all because I can put the bike up on the center stand with the kickstand down and it runs just fine. |
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December 8th, 2015, 08:41 AM | #2 |
n00bie to wannabie
Name: Bill
Location: St Ives, BC (Shuswap Lake)
Join Date: Sep 2015 Motorcycle(s): 2012 250R (Red), 2005 VFR800A (Red), CRF450X (Red), 2012 F800GS (Wants to be Red!) Posts: A lot.
MOTM - Nov '15
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Broken wires are famous for this behavior and can be elusive andtough to track down.
The wire connection can be intermittent and can also be affected by the wire heating due to the high resistance created or expansion from heat of the wire harness which creates the broken wire separation. But yes; first clean your ground connections. It may also be in the key assembly if jiggling the lock seems to provide a degree of success. Edit: everything I've written above sounds obtuse! (I haven't had my coffee yet!) Hope you can make out what I'm blathering about! I'll maybe try to rewrite it later today!
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The Smart Money: #1 - ATGATT, #2 - Training (machine skills and survival skills), #3 - The bike; whatever floats yer boat with the money you have left over |
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December 8th, 2015, 08:45 AM | #3 | |
ninjette.org certified postwhore
Name: Tom
Location: Northern Virginia
Join Date: Jul 2015 Motorcycle(s): 2001 Ninja 250, 2019 Harley Ultra Classic, 2001 Suzuki SV650 Posts: A lot.
MOTM - Jan '16
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Quote:
Check and clean ground connection Check for broken wires (may be difficult to find) Check Key assembly |
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December 8th, 2015, 08:48 AM | #4 |
n00bie to wannabie
Name: Bill
Location: St Ives, BC (Shuswap Lake)
Join Date: Sep 2015 Motorcycle(s): 2012 250R (Red), 2005 VFR800A (Red), CRF450X (Red), 2012 F800GS (Wants to be Red!) Posts: A lot.
MOTM - Nov '15
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My search for an editor is over!
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The Smart Money: #1 - ATGATT, #2 - Training (machine skills and survival skills), #3 - The bike; whatever floats yer boat with the money you have left over |
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December 8th, 2015, 09:38 AM | #5 |
Rev Limiter
Name: Jay
Location: WI
Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot.
MOTM - Jun '18, Oct '16
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Because you said it happens when you go over a bump, I would read through this section on safety switches to get some idea of which one may be causing the issue and how to check it -
http://faq.ninja250.org/wiki/Underst...afety_switches A battery with an internal short might also cause that type of problem I would think. If you could test the battery voltage when it quit it would tell you. |
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December 8th, 2015, 09:45 AM | #6 | |
ninjette.org certified postwhore
Name: Tom
Location: Northern Virginia
Join Date: Jul 2015 Motorcycle(s): 2001 Ninja 250, 2019 Harley Ultra Classic, 2001 Suzuki SV650 Posts: A lot.
MOTM - Jan '16
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Quote:
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December 8th, 2015, 09:50 AM | #7 | |
Rev Limiter
Name: Jay
Location: WI
Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot.
MOTM - Jun '18, Oct '16
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Quote:
I guess I would start at the battery and go from there, focusing on wires and connections that supply power to the entire system. A lot easier to diagnose when you actually have the problem than when you don't. |
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1 out of 1 members found this post helpful. |
December 8th, 2015, 01:51 PM | #8 | |
Chaplain
Name: Charlie
Location: Toledo
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Quote:
I know that you can track it down, just be methodical, and eliminate one thing at a time. Good luck and hope you get it figured out! Charlie
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December 8th, 2015, 07:28 PM | #9 |
ninjette.org member
Name: Chris
Location: Charleston SC
Join Date: Oct 2015 Motorcycle(s): 2004 EX250F Posts: 27
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Provided you did not do any extensive re-wiring over the years, you should have white wires that comes from your main fuse and run to your fuse box, ignition switch, and regulator. As Yamahawk said put some focus on that separate 30 amp fuse, and go from there.
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December 9th, 2015, 07:09 AM | #10 | |
ninjette.org certified postwhore
Name: Tom
Location: Northern Virginia
Join Date: Jul 2015 Motorcycle(s): 2001 Ninja 250, 2019 Harley Ultra Classic, 2001 Suzuki SV650 Posts: A lot.
MOTM - Jan '16
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Quote:
Probably won't have a chance to tear things apart until Friday. Of course I have several other things to do on Friday too, and would really love to get the café racer running for Sunday's ride. |
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December 9th, 2015, 05:34 PM | #11 |
EX500 full of EX250 parts
Name: Bill
Location: Grand Rapids-ish, MI
Join Date: Jul 2012 Motorcycle(s): '18 Ninja 400 • '09 Ninja 500R (selling) • '98 VFR800 (project) • '85 Vulcan VN700 (sold) Posts: A lot.
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MOTM - Aug '15
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What they said. The safety switches kill the engine, but not all the power on the bike. If EVERYTHING goes out, it has to be one of the components common to all circuits. That means the white Main wire, possibly the brown switched power wire from the ignition to the junction box, or a major ground. Problems with those could kill pretty much all the power.
If playing with the key actually helps, I would suggest looking at the ignition switch first. But that could be a red herring if it's just coincidence with a hot wire cooling, a broken wire wiggling back to a working state, etc. FYI, the kickstand switch will kill the engine if it's down and you don't have the bike in neutral or the clutch pulled in. In normal usage, it will kill the engine as you start to ride off - after you've put it in gear, as you let the clutch out to start moving. If you have the bike running and in gear on the centerstand, putting the sidestand down should kill the engine. But the engine will run just fine as long as you're pulling the clutch lever or have it in neutral.
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December 10th, 2015, 10:18 AM | #12 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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What everyone is saying. Also diddle around with the ignition switch and see if you can tease a failure.
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December 11th, 2015, 08:23 AM | #13 |
ninjette.org member
Name: Chris
Location: Charleston SC
Join Date: Oct 2015 Motorcycle(s): 2004 EX250F Posts: 27
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It's Friday, so please let us know what you did and what ya found.
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Dress for the slide, not the ride. |
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December 11th, 2015, 08:34 AM | #14 |
ninjette.org sage
Name: Matthew
Location: Toronto
Join Date: May 2009 Motorcycle(s): 2015 V-Star 950 Tourer (Deep Blue) Posts: 570
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I'm betting on the kickstand switch, I went through that myself. after finding the bike on the floor in a parking lot.. while riding around it would do something similar to this, ended up changing the spring and that solved it
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December 11th, 2015, 02:04 PM | #15 |
ninjette.org certified postwhore
Name: Tom
Location: Northern Virginia
Join Date: Jul 2015 Motorcycle(s): 2001 Ninja 250, 2019 Harley Ultra Classic, 2001 Suzuki SV650 Posts: A lot.
MOTM - Jan '16
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Think I found it, everything goes out when I wiggle the cable to the ignition switch. Right in this area.
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1 out of 1 members found this post helpful. |
December 11th, 2015, 02:09 PM | #16 |
n00bie to wannabie
Name: Bill
Location: St Ives, BC (Shuswap Lake)
Join Date: Sep 2015 Motorcycle(s): 2012 250R (Red), 2005 VFR800A (Red), CRF450X (Red), 2012 F800GS (Wants to be Red!) Posts: A lot.
MOTM - Nov '15
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A'hem....
Nailed it in post #2
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The Smart Money: #1 - ATGATT, #2 - Training (machine skills and survival skills), #3 - The bike; whatever floats yer boat with the money you have left over |
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