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1975 moto guzzi tail light and rear turn signals

G

GuzziVit

Just got it firing!
Joined
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Location
Deer Park, Illinois,United States
Hi, Everyone I hope someone can give me some guidance.

I'm trying to install the tail light on my moto guzzi and was looking at the wiring diagram and wanted to know what is the 4 connector amp that connects to the original tail light and rear turn signal and how the connector functions. I don't seem to see that connector in the wiring harness i have on my moto guzzi and every time I'm trying to connect the tail light i get a blown fuse. unnamed.gif
 
Last edited by a moderator:
If you are blowing a fuse, then that path is going directly to ground. Check the wiring to the tail light and double check your wire colors. If you are using a test light or multi meter, make sure the wires in the harness you are trying to connect to are the correct ones before attempting to connect the lights. The connector you are looking for could have been removed any time in the past.
 
I don't think there is an AMP connector on the 850-T, but rather individual "bullet" terminals. Here's a photo of the 850-T harness Gregory Bender sells. He makes then to match the originals and this shows male bullets terminals for the taillight (yellow wire) and brake (black wire). wiring_mainharness_850t_1.webp
 
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john zibell said:
If you are blowing a fuse, then that path is going directly to ground. Check the wiring to the tail light and double check your wire colors. If you are using a test light or multi meter, make sure the wires in the harness you are trying to connect to are the correct ones before attempting to connect the lights. The connector you are looking for could have been removed any time in the past.
Click to expand...
It seems like the wires were cut in the original wiring harness and had to attach new wires. i believe i used 16 gauge wires. Do you know what might be the correct size.
 
Amboman said:
I don't think there is an AMP connector on the 850-T, but rather individual "bullet" terminals. Here's a photo of the 850-T harness Gregory Bender sells. He makes then to match the originals and this shows male bullets terminals for the taillight (yellow wire) and brake (black wire). View attachment 39287
Click to expand...
yes by looking at the picture I dont see the 4 way connector amp. maybe i don't need it .
 
GuzziVit said:
yes by looking at the picture I dont see the 4 way connector amp. maybe i don't need it .
Click to expand...
If there wasn't one originally, then you don't need one now.

If the harness has been hacked, then you might consider replacing it. Gregory Bender sells excellent harnesses at a reasonable cost. thisoldtractor.com/for_sale_wiring_harness_tonti_850_t.html
 
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