Indicator issues

[gager5000]

Ok, I'm being beaten by the dark art of electronics so if anyone can help then it would be incredibly useful. Riding the bike home last week (after mod 2 pass ) i noticed the indicators seemed a bit dim. Then on the way to work the next morning they gave up all together. Got to the bike to come home dreading hand signals for 25 miles i checked them and they'd decided to work, but, about 5 miles into the journey they died again.

Cant figure out why this is, am going to get a new flasher unit today but not confident that'll work, also, the brake light keeps playing up (wont come on or wont switch off, depending on its mood).

Any thoughts would be great as am desperate to take it out properly without L's.

One last thing, IT'S FREEZING!

[gager5000]

Its a 1980 cg125 btw, realised that might be useful

[Imonster]

When I had a similar problem with a DT125 it was because the battery was FUBARED, not the flasher unit.
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Those who make peaceful revolution impossible will make violent revolution inevitable.

[Teflon-Mike]

Brake light sounds like the switch is sticking.
There's two, one under the front brake lever, one above the rear brake lever, worked by a spring. actual switch will be round, sat in a plate welded to the frame with a couple of plastic hex nuts above & below to secure it. (They also allow it to be adjusted as to where in the pedal travel brake light comes on)
Back Brake light switch is most common clupret, they often get full of crud and the pin the spring to the pedal pulls gets rusty & they stick one end or other, or sometimes both.
Identify the switch, pull it off, clean it, fiddle with it, douse it in WD40, put it back on, & then adjust the height, it sits in the bracket with those nuts, to get it to switch at a useful point in pedal travel, and not jam fully open becouse its sitting to high.

If that doesn't cure, have a look at the front brake light switch. 1980 model, though...... just had a HA moment.... thought it said 90. Is it a drum brake model? Its earlier enough to not need a front brake light switch, and if its drum, may not actually have one!

If it were disc, then its normally a standard micro-switch under the brake reservoir, worked on a padel off the brake lever.

On drum braked bikes, arrangements vary, though normally a bery small barel mictroswitch in a hole in the brake lever bracket just under the cable guide, with a pin close to where the lever sits in the hings. Then can get crudded up, similar procedure to sorting a rear B/L switch, only they acan be tricky to get out.

Either switch though is normally only £3/4 if you want to replace.

Indicators, does sound like the flasher could be the cause, but when they go, they normally start by giving a low or erratic flash rate, rather than just giving up the ghost.

Back to it being an '90 model, is it 6v? And how old is the battery?

If the battery is old and lazy and not holding much charge, and worse when its a bit cold out, then possible that its not holding enough charge to actually give the volts to make the flasher flip-flop.

Of course, you most often use indicators when sat idling at a junction, or slowing down for one, when engine revs are low..... hence low generator out-put, hence dim indicatiors tending towrds extinction. Headlamps, may still work OK, if they are on a seperate generator winding.

If its not battery or flasher, then I'd suspect a dicky contact or bad earth some-where. Matter of pulling connections & cleaning stuff, and putting it back together with a douse of WD40.
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[Nexus Icon]

It's probably a dodgy earth or, if the headlight is affected too, the battery.

It's unlikely that a whole list of separate electrical and electronic components have decided to start playing up at the same time so look for a common link.
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Greetings from Shitsville!

[truslack]