1964 Allstate rear lights
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Hooked
68sprint,65super,64Allstate,55 Allstate
Joined: 20 Jul 2017
Posts: 240
Location: Central california
Wed Jan 09, 2019 3:11 pm quote
Well I posted awhile back about a problem I have with the tail lights on my 64. The brake light seems to work ok, but the running light keeps blowing. As soon as I rev the engine, the voltage skyrockets and another blown bulb.
I took the advice of some MVF members. I replaced the running light with a 10 watt bulb instead of 5 watt. Did not work....is it possible that the stator can put out too much voltage? I do realize there is no voltage regulator and the voltage is controlled by the load, but the voltage goes crazy when the engine is revved. Any help is appreciated. Thanks scott

8449D1C9-6DAA-42AA-9F67-FB34EA3BB4C3.jpeg

Ossessionato
I have a few scooters....
Joined: 08 Nov 2005
Posts: 2196
Location: San Antonio, TX
Wed Jan 09, 2019 8:11 pm quote
The brake light has its own coil in the stator. Most likely it needs to be replaced.
Hooked
68sprint,65super,64Allstate,55 Allstate
Joined: 20 Jul 2017
Posts: 240
Location: Central california
Wed Jan 09, 2019 8:20 pm quote
64 Allstate lights
Maybe I misled you...the brake light works...it is the running light that is blowing. Scott
Hooked
68sprint,65super,64Allstate,55 Allstate
Joined: 20 Jul 2017
Posts: 240
Location: Central california
Sat Jan 12, 2019 6:26 pm quote
64 rear running light
Well the response was not what I expected. How about has anybody tried to add a voltage regulator to a ciruit, because of a voltage surplus? Any help would be great. Scott
Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 6667
Location: Victoria, Australia
Sat Jan 12, 2019 8:12 pm quote
Yes people have added a regulator, there were a number of threads some time ago. The regulator that I bookmarked at the time was this one. I recall someone said all they did is add it to the system, didn't matter where apparently and worked well.
https://www.scooterwest.com/vintage-vespa-6v-ac-regulator-reg6v.html
Ossessionato
1976 Super (x 2), 1974 Primavera (x 2), 2006 Fly 150
Joined: 26 Sep 2013
Posts: 4388
Location: So Cal
Sun Jan 13, 2019 9:16 am quote
I tried a dozen different bulb combinations and couldnít get the tail light on my smallie to stop blowing.

Finally wired this little guy in to the tail light circuit at the junction box. Never blown a bulb since.

https://www.treatland.tv/yamaha-FS1-6V-regulator-p/yamaha-fs1-6v-regulator.htm
Ossessionato
Joined: 22 Oct 2011
Posts: 3779
Location: Tega Cay, SC
Sun Jan 13, 2019 9:58 am quote
^^^ This, those semi cheapo voltage regs work well. I may have one I can send you.
Hooked
68sprint,65super,64Allstate,55 Allstate
Joined: 20 Jul 2017
Posts: 240
Location: Central california
Sun Jan 13, 2019 12:17 pm quote
64 rear tail lights
Ok now Iím getting some where. I appreciate all the help. Tierney if you have an extra....send me a pm. Thanks scott
Hooked
68sprint,65super,64Allstate,55 Allstate
Joined: 20 Jul 2017
Posts: 240
Location: Central california
Sun Jan 13, 2019 12:21 pm quote
64 taillights
Thanks Ginch...scooters west not too far from me and I will go back and see if I can find those old threads. Scott
Rallies Europe 2016   vespa scooterwest scooter west Motorsport Scooters   AF1 Racing Vespa Austin
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