guzziriders.org - moto guzzi forum Homepage
Forum Home Forum Home > Technical > Singles
  New Posts New Posts RSS Feed - Stornello Sport 125 1969 Light problems
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Stornello Sport 125 1969 Light problems

 Post Reply Post Reply
Author
Message
rich72 View Drop Down
Falcone
Falcone


Joined: 14 Mar 2017
Location: UK
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote rich72 Quote  Post ReplyReply Direct Link To This Post Topic: Stornello Sport 125 1969 Light problems
    Posted: 14 Mar 2017 at 16:32
Hi All
Just bought a 'renovated' Stornello Sport 125 1969 model and working through a few hinge to get it ready for MOT.
Having problem with lights. Really need some expert help! Please!!
Turn the key one way and side light & rear light all ok.
Turn the key the other way and headlight and main beam work ok but rear light just won't work at all.
What's going on???
Many thanks for advice to help diagnose and fix this.
Or if there is someone in the east/southeast of U.K. who thinks they can solve it, please step forward.
Even if I have to pay to get it completely rewired. Just want it working 😩


Back to Top
rich72 View Drop Down
Falcone
Falcone


Joined: 14 Mar 2017
Location: UK
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote rich72 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 16:33
That was 'things' not 'hinge' !!
Back to Top
Dave P. View Drop Down
Senior Member
Senior Member
Avatar

Joined: 12 Jan 2015
Location: Northants
Status: Offline
Points: 5573
Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 17:25
Looks to me as though the key switch is incorrectly wired.The rear lamp is ,it seems not wired into the main light circuit.Have you got a wiring diagram so that you can check which should be wired to what ?




http://www.thisoldtractor.com/guzzi007/pdfs/1970_Stornello_5.pdf

Edited by Dave P. - 14 Mar 2017 at 17:46
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
Back to Top
italianmotor View Drop Down
Senior Member
Senior Member
Avatar

Joined: 14 May 2014
Location: UK
Status: Offline
Points: 2101
Post Options Post Options   Thanks (0) Thanks(0)   Quote italianmotor Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 19:57
I own/have owned various Stornellos, and when I get hold of them, there's always some electrical issue.  These can usually be sorted out by going methodically through the wiring and the connectors in the headlamp, having firstly found the correct wiring diagram for your bike. Make sure the right colours are in the right terminals on the blocks. Also check that the wiring hasn't frayed or broken in the loom heading back along to the back light. They're pretty simple bikes, as are the wiriing looms, and it just takes patience!

Guzzi lover doing my own thing: http://www.italianmotormagazine.com
Back to Top
rich72 View Drop Down
Falcone
Falcone


Joined: 14 Mar 2017
Location: UK
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote rich72 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 20:00
Hi Dave
Thanks for quick reply. Got a wiring diagram and it all appears to be right.
Do you have a Stornello? I'm just wondering if tail light should even come on when key is switched to daytime? Maybe it should only come on when key is switched to night? If that's how it should be then for sure the wiring is wrong. Really hoping someone can describe which lights should come on with key turned left and right, and maybe even take a few pics of the wiring (done right!) inside headlight.
Thanks again!
Back to Top
rich72 View Drop Down
Falcone
Falcone


Joined: 14 Mar 2017
Location: UK
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote rich72 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 20:07
Hi 'italianmotor'
Thanks for the reply. As the rear light comes on when the sidelight is on, I figured the wire is intact all the way to the back. Just can't figure out why it doesn't come on when headlight and main beam are on!
Various connections and wires inside the headlamp case were 'dodgy' so we've done quite a lot with the soldering iron - but haven't changed any connections. Just made them solid where they were.
Can you answer if rear light should come on in unison with sidelight or only with headlight? You don't happen to have any pics of how the wiring should look?
Cheers
Rich
Back to Top
italianmotor View Drop Down
Senior Member
Senior Member
Avatar

Joined: 14 May 2014
Location: UK
Status: Offline
Points: 2101
Post Options Post Options   Thanks (0) Thanks(0)   Quote italianmotor Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 20:22
From memory, rear light should come on with key turned to other the right or left, but not in the middle.
Guzzi lover doing my own thing: http://www.italianmotormagazine.com
Back to Top
rich72 View Drop Down
Falcone
Falcone


Joined: 14 Mar 2017
Location: UK
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote rich72 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 20:34
OK thanks. That's what I expected but needed to ask someone who has one of these bikes that's fully working. Definitely a gremlin at work somewhere in mine, as my tail light only works in unison with sidelight. Grrr!
Back to Top
Mike H View Drop Down
Senior Member
Senior Member
Avatar

Joined: 21 May 2014
Location: East Anglia
Status: Offline
Points: 8733
Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2017 at 23:47
There's no lighting switch on these then?


"Chicken nuggets don't dance on a Tuesday."
Back to Top
Dave P. View Drop Down
Senior Member
Senior Member
Avatar

Joined: 12 Jan 2015
Location: Northants
Status: Offline
Points: 5573
Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 15 Mar 2017 at 08:51
If the switch is wired correctly then perhaps a continuity fault within the switch.
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Offline
Points: 17641
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 15 Mar 2017 at 09:27
Originally posted by Mike H Mike H wrote:

There's no lighting switch on these then?


According to the wiring diagram there is a light switch. However there are three wiring diagrams, for the Scrambler, Stornello 1 and Stornello 5.
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.156 seconds.