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General Category => General Discussion => Topic started by: nsmith on June 28, 2022, 08:34:10 AM

Title: Lights Out
Post by: nsmith on June 28, 2022, 08:34:10 AM
1986 V65 Lario
Lights quit working, park lights still work, pass light still works but (lights on) does nothing.
A wiring diagram would be very helpful right about now.
Thanks.
Title: Re: Lights Out
Post by: cowtownchemist on June 28, 2022, 08:39:28 AM
Have you checked the fuses yet?  I had the opposite happen.  Headlight worked but passing/bright lights did not.  Ended up being a 10amp fuse which was blown.
Title: Re: Lights Out
Post by: Antietam Classic Cycle on June 28, 2022, 08:41:55 AM

A wiring diagram would be very helpful right about now.


There's one listed here: https://www.thisoldtractor.com/guzzi007/sportissimo.html
Title: Re: Lights Out
Post by: nsmith on June 28, 2022, 10:19:58 AM
Have you checked the fuses yet?  I had the opposite happen.  Headlight worked but passing/bright lights did not.  Ended up being a 10amp fuse which was blown.
Thanks but yes I just checked and all fuses are good.
Title: Re: Lights Out
Post by: Kiwi_Roy on June 28, 2022, 12:00:30 PM
The Lario has a 4 way Molex connector (16) just under the tank, this was a constant cause of problems on the one I had, just cut out for no reason, I tried replacing the components but eventually just crimped a butt splice in parallel to the  connector, no more problems.
Title: Re: Lights Out
Post by: Guzzistajohn on June 28, 2022, 02:58:34 PM
My '80 CX needs it's fuses pulled and cleaned every few years. Rubbing on a pair of blue jeans usually get's things sparking again.  :laugh:
Title: Re: Lights Out
Post by: nsmith on June 28, 2022, 03:28:54 PM
Ok, the problem is in the switch itself, I can jump the switch and everything works great. Now we all know how cheap we can be, I don't know it this is even available but I Doubt it. I'm gonna have to try something, Driving w/o lights at night is a real bitch.
Title: Re: Lights Out
Post by: Tom on June 28, 2022, 03:35:22 PM
Yeah....Bambi and her friends.   :tongue:  Clean the switch contacts and/or look for a replacement.  Some of the stuff on Amazon will work.  There are switches in there.
Title: Re: Lights Out
Post by: nsmith on June 30, 2022, 11:06:22 AM
One of the solderless connections at the switch had worked its way loose, A touch of solder seems to have thing righted once again. Thanks for most of your advice. 
Title: Re: Lights Out
Post by: Tom on June 30, 2022, 02:29:32 PM
 :thumb: