Electrics on the blink

[Mike the Bike]

Hi all

I need some help with the electrics on my R80GS. It was running OK (electrically), but I decided to try to find the source of loud ticking noises in the engine, so I :-

removed heads and barrels (nothing wrong there except the rings were lined up - sorted, and the tappets needed slight adjustment)

removed timing chain cover and checked everything was OK with the chain and guides - relieved some tension in the chain.

I also replaced the neutral switch as it was leaking.

Anyway, put it all back together, and now I have electric issues !

I've checked the fuses - they're fine. Strangely, in my quest to find the fault, I tried running a heavy lead directly to the starter. I got it to spin, but not to engage and turn the engine ???

There doesn't seem to be any power getting to the starter, the idiot lights, the lights, etc. In fact, the only thing working seems to be the rear light and front parking light when I switch to 'park'.

Something has obviously been disturbed - any ideas ? Could it be the rotor or the diode board causing all the problems ?

Many thanks

 

[pete.keys]

If everything appears to be off - check the white connector block under the tank. This may have got pulled out slightly and will stop just about everything working including the generator and neutral lights

Hi all

I need some help with the electrics on my R80GS. It was running OK (electrically), but I decided to try to find the source of loud ticking noises in the engine, so I :-

removed heads and barrels (nothing wrong there except the rings were lined up - sorted, and the tappets needed slight adjustment)

removed timing chain cover and checked everything was OK with the chain and guides - relieved some tension in the chain.

I also replaced the neutral switch as it was leaking.

Anyway, put it all back together, and now I have electric issues !

I've checked the fuses - they're fine. Strangely, in my quest to find the fault, I tried running a heavy lead directly to the starter. I got it to spin, but not to engage and turn the engine ???

There doesn't seem to be any power getting to the starter, the idiot lights, the lights, etc. In fact, the only thing working seems to be the rear light and front parking light when I switch to 'park'.

Something has obviously been disturbed - any ideas ? Could it be the rotor or the diode board causing all the problems ?

Many thanks

 

[Steptoe]

You've removed the front engine cover haven't you...

Have you replaced the little wire that runs through the front cover to the starter motor

Apart from that it's impossible to predict over the internet what you have and have not done when reassembling.

 

[Kenny]

As above oh and the ticking noise is probably the rocker shaft bearing a little worn

 

[Beemerboff]

If the white block is OK check the other two blocks in the same location, the wires to the starter relay, and the earth point for the wiring harness, which is round about the coil bracket somewhere.

And check check the fuses again,with a voltmeter both sides.

Dont rule out the ignition switch either, the plastic back to the switch is held in place by two crimped ears which eventually wear and the back moves around, and this can be the cause of puzzling mystery failures = dahik

 

[Mike the Bike]

OK thanks all - I'll work through that list tonight. I have connected all the wires Ok (I think).

 

[bumpmuncher]

how are the earths ? have they got good continuity. The one connected near the back of the ignition coil, pulse amplifier thingy seems to be quite important

 

[Kenny]

OK thanks all - I'll work through that list tonight. I have connected all the wires Ok (I think).

The big block can look connected but make sure it is pressed fully home as the front of the wiring loom can gently put it away

 

[MickDB1]

I trapped the wires when replacing the front alternator cover once

hopefully you havent
HTHY

 

[Mike the Bike]

All fixed, but too embarassed to mention what fixed it

 

[Timpo]

All fixed, but too embarassed to mention what fixed it

Do tell.... it may help another tosser one day......

 

[Kenny]

The dreaded Kill Switch syndrome !!

 

[(RIP) pastyman]

Now wait for the piss taking to start.............. But weve all done it.

I had the lads at Northwich nick push me round the block at six am after a shift Bugger would not start, ...... then I saw the kill switch... never let on though

 

[electric_monk]

So thats why we're called Tossers......
I'm so glad it isn't just me that does this sort of thing.

 

[slowkitty]

Darn. I thought that ticking is normal?

How do we tell between healthy and not so healthy ticking noises?

 

[pete.keys]

I once spent 2hours with a multimeter before remembering you have to pull the clutch in to start the bike

 

[Roger Chatterton]

I once spent 2hours with a multimeter before remembering you have to pull the clutch in to start the bike

???????

 

[(RIP) Proff]

???????

If the bike is in gear, but sometimes it will require clutch pull in in neutral as well, I don't know why

 

[pete.keys]

If the bike is in gear, but sometimes it will require clutch pull in in neutral as well, I don't know why

Yes - with my old r80g/s I always had to pull the clutch in whether in neutral or not. In fact it would never start in gear, even with the clutch pulled in - which was a pain if I stalled as i had to get it back into neutral before I could start it again.

 

[Steptoe]

If the bike is in gear, but sometimes it will require clutch pull in in neutral as well, I don't know why

Diode has failed

Diode has different locations depending on the model/year etc etc.