December 18th, 2017, 04:54 PM | #1 |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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Turn Signal Issues
Hello everyone I just joined the forum and will probably do the introduction to me later. I'm not the best at navigating through forums so I hope I put this in the correct place.
I currently have a 2000 Ninja 250 that I picked up probably around 6 months ago or so. I'm in the process of turning it into a cafe racer and during the process I went to go hook up my tail and turn signals when I came across the issue of no power to the turn signal circuit. This is what I've checked so far: I checked the fuse I have tested the flasher using a power source and a test light (Which I then replaced it) I have checked the wiring going to the flasher with a multimeter (this is when I realized that I didn't have any power) I then proceeded to check different components with the multimeter, No power to the switch and no power to the fuse at the box. I then proceeded to follow the wires back and haven't found anything out of the ordinary and I've been checking everything I could think of to no avail. I've been looking at wiring diagrams for the past day or so and just checking over everything. I'm hoping its just something simple at which i'm just overlooking. Any help would be appreciated, this isn't a crucial part to my build just yet but i'm almost done with it and this issue is bothering me. Thanks for any input. |
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December 18th, 2017, 05:11 PM | #2 |
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When you checked fuses, did you just eyeball it? Or did you actually remove it and measure resistance across the legs? What was the resistance you measured?
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December 18th, 2017, 05:27 PM | #3 | |
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Quote:
In troubleshooting these circuits, it’s best to make a finite-state table. These are on/off states at each components and junction: Ignition OFF / ON Fuse-1 inlet. ____/____ Fuse-1 outlet ___/____ turn-relay in ___/____ turn-relay out ___/____ turn-switch in ____/____ Every single junction and component of turn-signals should have a 0v or +12v state depending upon ignition switch Off or On. Fill in the table and post it here and we can spot the problem immediately. Also add junctions & components not listed, bulb resistance, power to ign switch, etc. |
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December 18th, 2017, 05:36 PM | #4 |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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I didn't check resistance across the fuse legs themselves, when I pulled the fuse to look at it I saw that it looked good and so I checked power where the fuse pushes into the box and I got anywhere from 0-.02 volts
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December 18th, 2017, 05:38 PM | #5 |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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Alright thank you, i'm going to go out and write these down. But which one is technically fuse 1? Newb question.. sorry.
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December 18th, 2017, 05:46 PM | #6 |
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It should be labeled “1” or “turn” near it.
Look underneath for wht/green and red/green wires going into it. |
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December 18th, 2017, 06:02 PM | #7 |
ninjette.org member
Name: Justin
Location: SW Missouri
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Okay so i did the measurements in volts ( I hope thats what I was supposed to do).
Fuse 1 inlet: 0.01v/0.00 Fuse 1 Outlet: 0.01v/0.00 Turn-relay in: 0.02v/0.00v Turn-relay out: 0.02v/0.00v Turn-switch in: 0.00v/0.00v ON/OFF |
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December 18th, 2017, 06:27 PM | #8 | |
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Quote:
1. Measure power at battery, what volts do you get? Also measure resistance of main 30-amp fuse by starter relay. Also measure resistance of all other fuses. To test fuses: 1. Remove fuse from fuse box 2. Set multimeter to lowest resistance range, typically 0-2000 ohms 3. Touch test probes together and note resistance number. This is a calibration offset that should be subtracted from actual resistance readings 4. Touch one test-probe to one leg of fuse, touch other test-probe to other leg of fuse. Write down resistance reading 5. Subtract calibration offset in step-3 from measured resistance of fuse in step-4 What is this final resistance number for fuse-1? Repeat for all other fuses |
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December 18th, 2017, 07:13 PM | #9 |
ninjette.org member
Name: Justin
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Okay, I will do that all tomorrow. I really appreciate it guys. Thanks
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December 20th, 2017, 11:27 AM | #10 | |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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Quote:
My battery was operating at full power, a little over 12v All of the fuses (Main fuse on the starter relay and all the fuses in the fuse box) balanced out to 0.00 after subtracting the calibration offset. |
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December 20th, 2017, 06:21 PM | #11 |
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Ok, let’s move downstream from battery and test things along way.
1. Pull 30a main fuse out of stater solenoid. Measure voltage at each fuse-leg terminal. What do you get? 2. Plug 30a main fuse back in 3. Measure voltage of white wire at ignition switch 4. Measure voltage of white/black wire at ignition switch |
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December 21st, 2017, 11:36 AM | #12 |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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I haven't done those tests yet but I just realized something (although I don't see how it would make the fuse not have any power) but I don't have front turn signals yet. Could that cause my no power issues? I know if there's not enough draw on the circuit it won't trip the flasher but i would still think that I would at least have power at the fuse box.
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December 21st, 2017, 12:15 PM | #13 | |
ninjette.org member
Name: Justin
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What is this final resistance number for fuse-1? Repeat for all other fuses[/QUOTE]
Quote:
Main fuse leg terminals: One read 13.3v and the other read 0.03v White wire at ignition: 12.8v White/Black Wire at ignition: 12.8v Now while I was measuring those wires I tested them all and all of them but the grey wire read 12.8, the grey wire read 10v. Not sure if thats supposed to be that or not. |
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December 21st, 2017, 02:43 PM | #14 | |
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Quote:
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December 24th, 2017, 09:59 AM | #15 |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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December 24th, 2017, 03:10 PM | #16 |
ninjette.org member
Name: RJ
Location: PA
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The Grey wire should read less than 12v it has a resistor in it. Has to be there for the bike to start.
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December 24th, 2017, 07:15 PM | #17 |
ninjette.org member
Name: Justin
Location: SW Missouri
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December 24th, 2017, 07:33 PM | #18 |
ninjette.org member
Name: Justin
Location: SW Missouri
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If all else fails maybe I could run an power wire with an inline fuse to the side of the relay that goes to the fuse box because im thinking maybe its the fuse box. In the end bypassing the fuse box so that could possibly be a test for it. Not sure if what I wrote makes sense though. Im not good at putting my thoughts into words.
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December 25th, 2017, 05:54 AM | #19 |
ninjette.org member
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You're welcome. The resistor on the Grey wire threw me for a loop when i bought an eBay ignition and couldn't figure out why I didn't have spark at the coils. No resistor, no spark.
What you said make sense to me as a test at least but I'm not the best with electrical issues.. |
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December 25th, 2017, 12:06 PM | #20 | ||
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Quote:
Quote:
Trace every millimeter of white/green wire from ignition-switch to fusebox. Use hook-probe or sewing needle to poke through insulation of wire every 3cm or so and measure voltage. At some point, you will find power at one spot, and no power 3cm downstream. Inspect wire segment in between; could be break in wire internally, or insulation may be exposed and inner wire shorted. |
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December 25th, 2017, 12:38 PM | #21 | |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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Quote:
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December 25th, 2017, 01:15 PM | #22 |
Guy Who Enjoys Riding
Name: Jim
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Or as a test, run another piece of wire from the ignition switch to fuse 1 and verify that the problem is solved. Then you have the option of installing that wire permanently by taping it neatly to the wire bundle that contains the original wire, rather than possibly having to unwrap a big piece of the harness to get to that wire.
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December 25th, 2017, 01:46 PM | #23 |
ninjette.org member
Name: Justin
Location: SW Missouri
Join Date: Dec 2017 Motorcycle(s): 2000 Ninja 250, Honda Magna Posts: 16
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Well guys, I appreciate the help! So turns out the green and white wire was severed about 3 inches from the ignition switch. If I had the correct wire diagram I probably would have traced that wire! The diagram I downloaded didn't even have a green and white. Thanks a lot everyone!
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