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Hi again lads, so my indicators turn on and stay on, they don't flash. I cleaned a few connectors and now they don't turn on at all! Now the relay makes one audible click when I activate the indicator, and according to the haynes this means it's knackered - but I popped the top off and when it's still activating, could it still be working?
also could this affect my brake light? the pedal activates the light but the front brake doesnt.
by the way I have checked all bulbs and they are grand. My dad reckons he poked around in the headlight and is paranoid he put some connectors on wrong. I suppose it's possible but he probably matched the colours which should be right enough shouldn't it? bloody wiring terrifies me!
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It is unlikely that the indicator issue is affecting the brake light as the wiring systems are independent of each other. That is assuming your dad has correctly connected the wires.
The indicator unit requires a certain amount of resistance in the line. The amount of resistance must be within a relatively small margin. If it is not in the correct margin then the indicator unit will not blink. the indicators on a CB750 require a significant amount of earth to create the resistance necesary for the unit to work.
If the original problem re-occurs, that is the indicators remain illuminated without blinking try this:
Take the cover off one of your indicators. On the inside of the indicators there is an earth that appears from around the globe and then dis-appears in the form of a wire back down the shaft towards the bike frame. Turn the indicaor light on so that it reamins constantly illuminated. Connect a piece of wire, anything will do even a screw driver will work if it is long enough, from the earth wire to the frame of your bike, preferably a bare metal part. I use the earth on the left-hand side.
If the indicator starts to blink your problem is your earthing. You need to find someway of increasing resistance in correctly. Alteratively you could try a higher amp globe.the wire. The easiest way is to ensure your earths are working
If the indicator goes out, your problem is liekly to be insufficient current, perhaps caused by an under powered battery or other form of resistance in the line caused by age.
Warning, don't start this process without plenty of spare globes and fuses. The good thing about the CB wiring system is that the 15amp fuse blows well before anything else will.
The indicaotr unit seems to be one of those parts that does not often require replacement.
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check the switch is working on the lever. to check the current put a wire in both connectors and the light should work.
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ok guys just spent a few hours messing and I can't get these indicators to work! I wonder could you clarify something for me - I can trace the light blue wire from the switchgear to the Right-front indicator, but I can't trace it from the switchgear to the Right-Rear flasher. same goes for the left-hand orange wire. is there a connector between the switchgear and the rear flashers or is it just a straight wire? should they be the same colour as the front (i.e. orange and light blue)? I guess I'm hoping there's a connector that I can clean up but I sure can't find it.
Also, it looks like the rears are only getting about 0.7v to the positive, whereas the fronts are getting the full 9.4v. (at the moment the front flashers stay on, but no power from the rear). If the wire is just old and corroded do I have to change the full loom or could I just replace the wire in question?
ah electrics!
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I think you should check the batter voltage. 9.4 volts is not enough to activate the flasher.
Make sure that your battery is fully charged.
Karl
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I just went through the same issue over the winter on my 76 cb750f. You have a few areas to check.
Hope your 80 is the same. Start with the turn signal switch, this is where my problem was. Take it apart completely to remove the brushes from the housing. The connection is made over twelve brushes on two rails, similar to railroad tracks(===/===). Six for the left and six for the right, if any one is broke, corroded, or just not making current the signal will not work properly. Inspect it carefully I had to look mine over a third time before I saw the broken solder connection. You can also use a multimeter on opposing brushes to see if one set is out. You have to have power on the switch to do this(not to assume you don't know, just want to be sure).
Assuming this didn't find the problem you have to follow the wires from the light to the switch. The wires change colors within the harness as they route to different fuses, junction box, switch and ignition, so you have to be meticulous doing this. Its not that difficult if you are careful and slow. Pay close attention near the relay and the fuses. The relay sounds to be bad from the beginning and may need to be replaced.
This should find the problem. Good luck.
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thanks Pena (and everyone) - I just replaced the flasher relay so I will definitely take a look at the switchgear. I looked underneath it and it has a big Triumph logo on it, so I reckon it's not OEM! I may look into replacing it with stock if I can find one on eBay. Cheers
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Has anyone experienced a problem with there turn signal not working while sitting still (stoplight). They work okay if you are going down the road running 50 mph, I have not replaced anything for thinking it may be the way they work??? 1977 F2
Best Regards
Noodler
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Hi guys I thought i'd post and tell you I got the indicators working! The triumph switchgear had similar colour wiring but in diferent positions to OEM and that started the confusion - along with a few loose connections and - lo and behold, some bad earths (thanks for the advice here in particular).
noodler all I can say is check for lose connections other than that maybe start a new thread with a specific question and hope for the best
thanks again
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