Alpino Wiring Diagram?

[Morizzi]

Hi all,

I'm slowly sorting out the issues with the Alpino. I've got a bit of dodgy wiring in therefrom a PO and I'm trying to sort it out. Went to my copy of the manual but it is missing the wiring diagram.  : Anyone got an electronic one you could email me please?

What clown would run a +ve feed in black wires?  : I don't know if that is standard but that's what I've got. Lucky I didn't burn out any wiring. I just naturally assumed that black would be negative. The headlight shell is just a pile of spaghetti.

I found that my ignition switch wasn't doing its job but I've managed to fix it, temporarily at least.  It was all gunked up. I tried to pull it apart but the bakalite just kept breaking so I decided to stop that.  :

Anyway I degreased the snot out of it then gave it a dunking in phosphoric acid to clean up the contacts then rinsed well and its working like a charm, for a while anyway.

Thanks in advance if you have the diagram.

Cheers

Rod

 

[redax5]

Rod,
Just e-mailed you a copy direct.
It would have been quite hard to read if I posted it here at <200kb.

HTH
Red

 

[Davo]

Don't trust Italian colour codes for wiring. The LMIII has black wires as +ve's all over the place, confirmed on the wiring diagram, and the 3CL Laverda also carries more than a few surprises. Slowly working through the LMIII for the same reason as you, plenty of weird wiring done by a PO.

 

[Morizzi]

Thanks Red,

The Alpino lives!  

I can't get all the dash lights or turn signals to flash. I get them to work but by the time I bundle the spaghetti back into the headlight shell something becomes unhappy. Oh well.

Dave, the +ve feed I'm talking about runs the whole length of the bike and provides 12V+ in parallel to the horn, flasher unit and brake switches. It is live 12V+ from the fuses with no appliance to use the power in between. It is not a return it is a feed.

If you look closely at the LM III wiring diagram you will see a coloured wire go to, then a black wire come from a device. Only exception to that is when the device is activated by a switch to ground. Still there is a device generally between the fuses and the black wire.

The more I run it the cleaner the exhaust becomes so that is good news. The clutch plates keep sticking together but I can break them apart easily enough with slipping the clutch and the rear brake.

I'm starting to get my head into it. Its just different to what I'm used to.

Thanks again.

Rod

A postscript.

The 2 majpor faults I found were faulty ignition switch and a break at the double connector for the horn which meant that none of the front devices on that circuit were receiving power.

Hard to diagnose until I got the ignition switch working and the wiring diagram helped heaps.

The rest of it appears to be crappy connections bundled into the headlight shell that don't like being disturbed.

Anyway except for a faulty rear brake swith all systems are go.

 

[breganzane]

Dave, the +ve feed I'm talking about runs the whole length of the bike and provides 12V+ in parallel to the horn, flasher unit and brake switches.

Hi Rod,

That is circuit and colour is correct and original, common amongst basically all the triples too AFAIK.  Generally speaking all earths are green.

Black is not an uncommon colour to use for an active, standard in mains wiring in the US is/was black for active, white for neutral and I think green for earth.  Caused a lot of problems here in Oz when our wiring colours used to be red for active, black for neutral and green for earth.

Cheers
Steve B