May 8th, 2020, 11:28 AM | #1 |
ninjette.org newbie
Name: Sam
Location: Wi
Join Date: Apr 2020 Motorcycle(s): 08 Ninja 250r Posts: 6
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2008 ninja 250 turn signals not working
I bought a project ninja 250 with no turn signals. I went on ebay and found generic turn signals that fit on the ninja 250. I removed the stock turn signal connectors so I could jut solder the new ones on. I decided to test before soldering. I turned the bike on, hit the signals, and nothing happened. It didn't take me long to realize that the issue was that I did not have a turn signal relay. I went to autozone and bought a generic 2 pin turn signal flasher. I installed, turned the bike on, still nothing.
It is worth noting that the turn signals are incandescent (like stock ones, I believe) and I tried with the bike running, no luck. It is also my understanding that the black/yellow wire is negative on all the turn signal wires and (I think) green is negative on the ebay turn signals because its the only color all the turn signals have in common. I attached some pics to show what I am working with (I have the front turn signals wired up the same way as the rears) |
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May 8th, 2020, 12:20 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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Yeah, doesn't matter which way you have bulbs connected with incandescent ones; will work either way. Problem lies upstream somewhere.
Do you have wiring-diagram? You'll want to trace path of power-flow from battery and test for voltage at every junction: 1. power @ battery-positive terminal = ? volts 2. power going into starter-solenoid B-terminal = ? 3. power going out of starter-solenoid white wire = ? 4. power going into ignition-switch white wire = ? 5. power going out of ignition-switch wires = ? each etc. Trace path from battery to bulb, about 537 junction test-points. Where power stops shows problem between that and previous test-point. |
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May 8th, 2020, 12:59 PM | #3 | |
ninjette.org newbie
Name: Sam
Location: Wi
Join Date: Apr 2020 Motorcycle(s): 08 Ninja 250r Posts: 6
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Quote:
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May 8th, 2020, 08:44 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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If you do Google search for "ninja 250 new-gen wiring diagram", you may find 'library of manuals' with PDF of new-gen service manual. I think page 376 may have diagram you're interested in.
So test for +12v starting at battery's positive and test every junction on way to light bulb. Turn ignition switch ON to test power after switch. Similarly, test ground side of circuit. Starting from negative terminal of battery out, all junctions should have fully continuity/zeros ohms and direct connection to negative-terminal of battery. Work your way to ground connector at bulb-socket. |
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May 8th, 2020, 10:23 PM | #5 | |
ninjette.org newbie
Name: Sam
Location: Wi
Join Date: Apr 2020 Motorcycle(s): 08 Ninja 250r Posts: 6
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Quote:
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May 9th, 2020, 12:10 PM | #6 |
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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You can bypass relay with piece of wire to bridge two relay terminals. This will make turn signals turn ON and not flash when activated. You should be able to measure +12v on inlet terminal of relay (org/grn) when turn signal is activated. If signal turns ON when activated, then yes, relay may be problem. If not, then problem is elsewhere.
If you don't have power going into flasher relay, you can replace it 10x with brand-new perfectly working relays, and your turn signals still won't work. It only takes 5-minutes to test various points on harness to find exact problem. Then you can fix it permanently. It you don't want to test and just prefer to replace parts, sure buy an OEM relay. If that doesn't work, buy brand-new harness from Kawi dealer. Don't buy used harness from eBay or breakers, those will need to be tested just like your current one. Last futzed with by DannoXYZ; May 10th, 2020 at 11:39 PM. |
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June 5th, 2020, 06:34 AM | #7 |
Livin' the Minimoto Life
Name: Mark
Location: Riding around in TX
Join Date: Mar 2009 Motorcycle(s): 2022 Honda Navi, 2018 Z-125 Pro Posts: A lot.
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One thing that may help is having power to the circuit, and then connect a long wire to ground and test various locations. Start at the furthest point from power, and work your way back. See where it drops off. It could be a bad fuse, bad solder joint, something simple.
They also make a tester that has a sharp ice pick tip, a bulb inside of it, and an alligator clip to connect to ground or power. Then you can just stab the wire here and there and figure out where the connection goes south. Will just take time to sit and find it.
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