Indicator Delay on Mk3

Mart UK · May 23, 2021

Hi, on my 850 mk3 I have a delay of a few seconds between turning on the indicators and them starting to blink (the amber tell-tale has the same delay, only blinks when the indicators start to work). Not battery related, charge is good. It is the same length of delay at all times: start / end of a ride; stationary and at speed; and with / without headlights on. Is this usual, or a fault?

Bernhard · May 23, 2021

Could be dirty connections including the earth.
A muti meter put into the feed connector might or might not show up a current delay.
Also check switch gear contacts are clean.

L.A.B. · May 23, 2021

Mart UK said:
Is this usual,

If it's an original Lucas 8FL or similar electro-mechanical relay then a delay of a couple of seconds is normal.

If it bothers you then fit a modern electronic flasher relay.

Tornado · May 23, 2021

Yes the electro-mechanical flasher unti has to heat up a bi-metallic strip sufficiently until it bends to dis-connect the power....then cools until it re-connects and starts heating once again. It may just need a clean up of the internal contacts (the metal cover pops off) or maybe beyond saving. Newer electronic flashers work just fine, not polarity dependent (two-prong type is all you need).

concours · May 23, 2021

I like the old one...
The cadence tells me my voltage.

Mart UK · May 24, 2021

Tornado said:
Yes the electro-mechanical flasher unti has to heat up a bi-metallic strip sufficiently until it bends to dis-connect the power....then cools until it re-connects and starts heating once again. It may just need a clean up of the internal contacts (the metal cover pops off) or maybe beyond saving. Newer electronic flashers work just fine, not polarity dependent (two-prong type is all you need).

I'll stick with it, but check it's ok. Where is this unit with the contacts?

L.A.B. · May 24, 2021

Mart UK said:
Where is this unit with the contacts?

The flasher relay is inside the headlamp shell on the Mk3.

Mart UK · May 24, 2021

Brilliant, thank you everyone.

Tornado · May 24, 2021

This what it should look like:

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Indicator Delay on Mk3

Mart UK

Bernhard

L.A.B.

Moderator

Tornado

concours

Mart UK

L.A.B.

Moderator

Mart UK

Tornado

Motorcycle parts and spares for Norton motorbikes - Genuine Andover Norton Spare Parts - Andover Norton Motorcycles Parts - Original Andover Norton Parts

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