Brake Light Works But Shuts Off
Moderator: Moderator
Brake Light Works But Shuts Off
Hi, I have a 1985 Spree. About a week ago I ran into tail light problems. When my moped is on and running the tail light is on. When I pull the brake it gets brighter but after about 15-30 seconds the light dims and goes out. Why is this happening and what can i do to fix it??? Thanks
-1985 Honda Spree-
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- CharlotteSpreeRider
- Veteran OG
- Posts: 709
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- Location: Sanford, FL
Re: Brake Light Works But Shuts Off
How's the battery been working? This kinda sounds like what mine did at idle when I had no battery.
- Wheelman-111
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Where Are You Going, Dave? Dave? [From 2001: A Space Odyss
Greetings:
It's the ECM! The computer reads the braking signal, and decides you've obviously spent far too much time on the brakes, and thoughtfully disengages them for you, Dave.
Sinceriously, consider hotwiring the two wires to and from the handlebar switch. It sounds like it could be corrosion there. When the Verdegris warms up, conduction falters, then fails. A common occurrence with little switches. Bigger ones like the horn switch can carefully be dismantled and cleaned up. Not so sure about those tiny ones behind the brake levers.
It's the ECM! The computer reads the braking signal, and decides you've obviously spent far too much time on the brakes, and thoughtfully disengages them for you, Dave.
Sinceriously, consider hotwiring the two wires to and from the handlebar switch. It sounds like it could be corrosion there. When the Verdegris warms up, conduction falters, then fails. A common occurrence with little switches. Bigger ones like the horn switch can carefully be dismantled and cleaned up. Not so sure about those tiny ones behind the brake levers.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Re: Brake Light Works But Shuts Off
Sounds like a bad ground to me, probably from corrosion. Why, because both the tail and brake light come on then go out and they use the same ground.
Bear 45/70
'83 Aero 80 X 3
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'85 Spree
'83 Aero 80 X 3
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- Wheelman-111
- Moderator
- Posts: 11325
- Joined: Wed Oct 22, 2008 5:09 pm
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Re: Brake Light Works But Shuts Off
Greetings:
If it's all the lights - that part wasn't clear - then I agree with The Bear, as usual. The reason is the same - corrosion somewhere along the metal-to-metal current path.
If it's all the lights - that part wasn't clear - then I agree with The Bear, as usual. The reason is the same - corrosion somewhere along the metal-to-metal current path.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Re: Brake Light Works But Shuts Off
With a little more though I also think it could be a dirty or corroded socket.
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: Brake Light Works But Shuts Off
Do both the tail and brake go out, or just the brake?
If its just the brake try switching the bulb. Could be just a bad filament that expands and breaks continuity when hot. If both lights go out I'd guess its most likely a corroded socket.
If its just the brake try switching the bulb. Could be just a bad filament that expands and breaks continuity when hot. If both lights go out I'd guess its most likely a corroded socket.
Lambretta TV-175 (wish I'd never sold it!)
2005 Vento Phantom R4i 125cc (stolen)
1986 Yamaha XC180 Riva
1985 Honda CH150D Elite
1988 Honda SA50 LX Elite
1989 Honda SB50
2007 iScooter 150cc
2006 Roketa 150cc
2006 TNG Venice 50cc
2005 Vento Phantom R4i 125cc (stolen)
1986 Yamaha XC180 Riva
1985 Honda CH150D Elite
1988 Honda SA50 LX Elite
1989 Honda SB50
2007 iScooter 150cc
2006 Roketa 150cc
2006 TNG Venice 50cc
Re: Brake Light Works But Shuts Off
"Do both the tail and brake go out, or just the brake?"
No only the brake light, when I release the brake the tail light comes back on.
No only the brake light, when I release the brake the tail light comes back on.
-1985 Honda Spree-
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Re: Brake Light Works But Shuts Off
Any resolution to this?
Lambretta TV-175 (wish I'd never sold it!)
2005 Vento Phantom R4i 125cc (stolen)
1986 Yamaha XC180 Riva
1985 Honda CH150D Elite
1988 Honda SA50 LX Elite
1989 Honda SB50
2007 iScooter 150cc
2006 Roketa 150cc
2006 TNG Venice 50cc
2005 Vento Phantom R4i 125cc (stolen)
1986 Yamaha XC180 Riva
1985 Honda CH150D Elite
1988 Honda SA50 LX Elite
1989 Honda SB50
2007 iScooter 150cc
2006 Roketa 150cc
2006 TNG Venice 50cc
Re: Brake Light Works But Shuts Off
So while the brake is on both lights are out. That means the ground is bad because it will only handle the current for one bulb.XCScott wrote:"Do both the tail and brake go out, or just the brake?"
No only the brake light, when I release the brake the tail light comes back on.
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: Brake Light Works But Shuts Off
Problem solved... I was sold a faulty light bulb that had a bad filament. I bought a new one and now it is fine. Thanks all for the help.
-1985 Honda Spree-
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