saltylimey Posted February 4, 2017 Posted February 4, 2017 Hi All,Is there anyone out there who might be able to help me sort a few problems wiring up a new set of gauges to a ybr for a cafe racer project? Basically, I've wired up the new set which had 9 wires, but there were 10 wires from the bike itself so have a brown wire left over as there's nothing to connect it to. As a result (?), only indicators and back light seem to be working!The photo shows the stock gauges removed and also shows the various brown wires that run into one eventually - my new gauges don't seem to have these brown wires!If anyone can shed any light on this please let me know - I can go into more detail too.Thanks,Christian Quote
ThePhatomfart Posted February 4, 2017 Posted February 4, 2017 Hi , have you got the right clocks/panel as the 05-06 only have 9 connections and the 07-on have 10 , could be you've got the older clocks Quote
saltylimey Posted February 4, 2017 Author Posted February 4, 2017 Hi Spanner,Ahh...you may be right! It was a bit of a punt on an eBay set of "universal gauges" so they're not yamaha-specific. Don't suppose you know a work-around?!Thanks anyway!Christian Quote
ThePhatomfart Posted February 4, 2017 Posted February 4, 2017 Hi, the problem is that the Light Green wire on the later model is the engine warning light whereas the early clocks dont have the engine warning light,although both have the neutral light Quote
saltylimey Posted February 4, 2017 Author Posted February 4, 2017 oh bum. OK thanks for your help. Back to the drawing board... Quote
ThePhatomfart Posted February 4, 2017 Posted February 4, 2017 oh bum. OK thanks for your help. Back to the drawing board... Never know Salty someone might come up with a better suggestion Quote
iangaryprice Posted February 4, 2017 Posted February 4, 2017 I tried putting a set of clocks form a YBR125 Injection 2009 onto my daughters YBR125 2005 Carb.As said above there is one wire extra on the later ones for the engine management light.The rev counter stopped working with the injection clocks above 4000rpm.I don't know if was due to a difference in the models or the clocks were faulty.Best way with wiring projects lie this is start with an earth, then add each light/instrument one at a time. Quote
saltylimey Posted February 5, 2017 Author Posted February 5, 2017 I tried putting a set of clocks form a YBR125 Injection 2009 onto my daughters YBR125 2005 Carb.As said above there is one wire extra on the later ones for the engine management light.The rev counter stopped working with the injection clocks above 4000rpm.I don't know if was due to a difference in the models or the clocks were faulty.Best way with wiring projects lie this is start with an earth, then add each light/instrument one at a time. Thanks for this. Makes sense to do it that way. I'll give it another go... Quote
iangaryprice Posted February 5, 2017 Posted February 5, 2017 If you need the engine management light you could just add a single warning light separate to the main cluster. Quote
saltylimey Posted February 6, 2017 Author Posted February 6, 2017 If you need the engine management light you could just add a single warning light separate to the main cluster. It's driving me nuts! I think one of the problems is that there is some configuration of common earths and/or common +ve within the cluster which is different to how the stock gauges were wired up. I should be able to work out logically what does what but I'm not that smart. For example, I know the neutral light wire goes to the neutral switch and earth but where does the power for it come from?! Argghhh Quote
Stu Posted February 6, 2017 Posted February 6, 2017 have you got a wiring diagram for both bikes? Quote
iangaryprice Posted February 6, 2017 Posted February 6, 2017 One side of the Neutral light should be live when the ignition is on. The other side is connected to the neutral light switch. When the bike is in neutral the switch connects the wire to earth putting the light on.I think this is where you are going wrong. The illumination bulbs, high beam, indicator lights all require an earth (black wire), They illuminate when =12v is applied to the other wire.Good luck. Quote
saltylimey Posted February 6, 2017 Author Posted February 6, 2017 have you got a wiring diagram for both bikes? I'm afraid this is all I have. Any thoughts?original YBR 2010 wiringnew gauges wiring Quote
saltylimey Posted February 6, 2017 Author Posted February 6, 2017 One side of the Neutral light should be live when the ignition is on. The other side is connected to the neutral light switch. When the bike is in neutral the switch connects the wire to earth putting the light on.I think this is where you are going wrong. The illumination bulbs, high beam, indicator lights all require an earth (black wire), They illuminate when =12v is applied to the other wire.Good luck. Thanks once again. I see what you mean but there is only one wire from the neutral light on the new gauges (must connect to the neutral light switch) so where does the +12V come from? Quote
Stu Posted February 6, 2017 Posted February 6, 2017 have you got a wiring diagram for both bikes? I'm afraid this is all I have. Any thoughts? Do the two different sets of clocks have different indicator warning lights? does one set have one light and the other set have two ie left and right?Ideally a full wiring diagram from both is needed Quote
saltylimey Posted February 6, 2017 Author Posted February 6, 2017 have you got a wiring diagram for both bikes? I'm afraid this is all I have. Any thoughts? Do the two different sets of clocks have different indicator warning lights? does one set have one light and the other set have two ie left and right?Ideally a full wiring diagram from both is needed Hi Stu, Yes, would make life a bit easier but I don't think there is one or at least not one readily available.There are two gauges:Left gauge is backlit with speedo, left indicator, right indicator (separate bulbs) and main beam indicator.Right gauge is backlit with RPM, fuel warning light and neutral light.At the moment, I have connected as follows:wires from bike--------wires from gaugeblack (earth)------------green (earth/ground)blue (instrument illumination)---grey (instrument backlight)dark brown (LH indictor)----------orange (left indicator)dark green (RH indicator)---------light blue (right indicator)Now, these all work. However, if I connect the rest up as apparently indicated, nothing else works.new gauges Quote
Stu Posted February 6, 2017 Posted February 6, 2017 Ah sorry for some reason I thought you was fitting some gauges from a newer bike I would be inclined to connect the earth first then try each connection separately to see what works it maybe that the earth is not good enough to take everything on the new clocks Quote
saltylimey Posted February 6, 2017 Author Posted February 6, 2017 Ah sorry for some reason I thought you was fitting some gauges from a newer bike I would be inclined to connect the earth first then try each connection separately to see what works it maybe that the earth is not good enough to take everything on the new clocks OK - didn't consider that. Will take a look. Thanks Stu. Quote
Stu Posted February 6, 2017 Posted February 6, 2017 Also it looks to me as though the brown wire could possible goes to the ECU You need to follow where that goes to on the wiring diagram Quote
iangaryprice Posted February 6, 2017 Posted February 6, 2017 I have just found the wiring diagram for my daughters YBR125 2005 (carb)Black wire - connects to rev counter, fuel gauge, illumination lights, left indicator, right indicator, full beamLight green - Fuel gauge form sensor.#Brown - connects to fuel gauge, rev counter, and neutral light.Light blue - Neutral light (earths when switch is closed)Yellow - full beam lightGreen + orange - indicatorsDark blue - illumination bulbsYellow/blue striped - signal form ECU for rev counter.Hope this helps. Quote
Stu Posted February 6, 2017 Posted February 6, 2017 Brown - connects to fuel gauge, rev counter, and neutral light. Can you confirm where the other end of the of this wire runs to? Quote
ThePhatomfart Posted February 7, 2017 Posted February 7, 2017 Sorry , just caught up on this one, here's the wiring diagrams for 2005-06 and 2007 on Quote
ThePhatomfart Posted February 7, 2017 Posted February 7, 2017 (edited) The first four you have done seem ok, Try this for the other Five BIKE - ClocksLight Blue - Black -Neutral lightGreen - Yellow/White -Fuel Gauge Yellow - Blue Main BeamBlue/Yellow - Yellow/Black TachoBrown - Green/Red 12v ignitionLight Green - This is the engine management light which your clock have not got a position for, it runs to the diagnosis connector , so you will have to set up a separate light for that, run over these connections your self first, like Stu said I thought you had another set of the same, Fingers crossedP.S. Once you have connected the brown, test the horn that will prove the 12v supply to the horn Edited February 7, 2017 by ThePhatomfart Quote
saltylimey Posted February 7, 2017 Author Posted February 7, 2017 Morning All,Thank you for the overnight replies - this gives me something to work with once again. Working away at the moment so can't tinker until later in the week.Will report back!Christian Quote
Spanner uk Posted November 3, 2019 Posted November 3, 2019 Hiya im having same problem on a 58 reg yamaha ybr custom .. keep trying to find a wiring diagram as everythings working except the rev counter ..help please ...newbie .. Spanner uk Quote
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