Author Topic: RGS Break Light  (Read 704 times)

Offline melvyndalby

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RGS Break Light
« on: 11.11. 2011 09:17 »
When I apply my rear brake the brake Light works but my ameter does not show a discharge. I have the same problem with my Gold Star.Any sugestions?

Offline alanp

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Re: RGS Break Light
« Reply #1 on: 11.11. 2011 10:16 »
No worries, it just means that your stop lamp circuits are not looped through the ammeter and are linked from the battery. My RGS  brake circuit is from battery - fuse box - stop switch - lamp - earth. This is the BSA system, except they didn't fit a fuse box.
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Offline MG

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Re: RGS Break Light
« Reply #2 on: 11.11. 2011 10:17 »
Hi Melvyn!

That is another case of "they all do that, Sir!"

The brake light is connected directly to the battery, as is the horn (maybe for reasons of safety, to avoid loss of both by a broken ammeter, dunno). Hence the ammeter doesn't "see" the additional load.
It's not a bug, it's a feature  *smile*

Cheers, Markus

P.S: Am willing to give your bikes a good new home in my garage if you can't live with the way they are wired  *contract*

PPS: Alan was faster. May I still have the bikes  ????
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

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Offline melvyndalby

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Re: RGS Break Light
« Reply #3 on: 11.11. 2011 12:17 »
Thanks to Alan and Marcus for info.Why does the ammeter show a charge when? rear brake pressed and engine running?

Offline LJ.

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Re: RGS Break Light
« Reply #4 on: 11.11. 2011 12:45 »
I think its a very good modification to run the brake light through the ammeter... It is a reassurance that the bulb/switch/circuit is working. No need for the horn to go through ammeter as you hear that.
Ride Safely Lads! LJ.
**********************
1940 BSA M20 500cc Girder/Rigid- (SOLD)
1947 BSA M21 600cc Girder/Rigid-Green
1949 BSA A7   500cc Girder/Plunger Star Twin-(SOLD)
1953 BSA B33  500cc Teles/Plunger-Maroon
1961 BSA A10  650cc Golden Flash-Blue
1961 BSA A10  650cc Golden Flash-Red

Offline MG

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Re: RGS Break Light
« Reply #5 on: 11.11. 2011 15:10 »
Quote
Thanks to Alan and Marcus for info.Why does the ammeter show a charge when? rear brake pressed and engine running?

With the battery being fully charged, the ammeter will naturally show no positive deflection. When the rear brake light is switched on, battery voltage will drop and the regulator kicks in and charges the battery (with sufficient rpm on the dynamo only of course), ergo the ammeter shows this charge.
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria