May 29th, 2019, 12:06 AM | #1 |
ninjette.org member
Name: Anthony
Location: Pittsburgh
Join Date: Mar 2019 Motorcycle(s): 2008 Ninja 250, 2015 zx10r, 2010 Ducati 848 Posts: 75
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Tach wire picture
If anyone has time, can someone take an actual picture of where the tach goes into the engine? Mine randomly stopped working one day... And I'm garbage at wiring diagrams. Also, any other suggestions? I've read that the tach needles randomly get stuck? It's an '08 with about 5000 miles
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May 29th, 2019, 02:52 PM | #2 |
ninjette.org certified postwhore
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot.
MOTY - 2018, MOTM - Nov '17
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Trace black wire from left coil.
Not sure what can be done though. Seems early '08 models had some issues with ignition box overheating and giving erroneous tach reading. |
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May 29th, 2019, 09:21 PM | #3 |
ninjette.org member
Name: Anthony
Location: Pittsburgh
Join Date: Mar 2019 Motorcycle(s): 2008 Ninja 250, 2015 zx10r, 2010 Ducati 848 Posts: 75
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Hmmmm.... The bike was cold on startup. Happened almost immediately after starting. Hopefully not that. I was thinking a loose wire, or worst case swapping the tach...
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May 29th, 2019, 09:44 PM | #4 |
ninjette.org certified postwhore
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot.
MOTY - 2018, MOTM - Nov '17
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1. Sure, measure resistance between black-wire connector at left-coil to other end of that wire at cluster connector.
2. Would also need to measure resistance of segment between cluster connector to tach circuit-board itself. 3. Then there's signal itself on that wire. Would need oscilloscope to inspect that signal. Should look something like this with logic high most of the time with grounding drops to fire coil. Also look at circuit board of tach for ballooned or blown capacitors. |
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May 29th, 2019, 09:50 PM | #5 |
ninjette.org member
Name: Anthony
Location: Pittsburgh
Join Date: Mar 2019 Motorcycle(s): 2008 Ninja 250, 2015 zx10r, 2010 Ducati 848 Posts: 75
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Thanks for the places to look, I appreciate it!
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