Battery Wire Colors

willybob · Post by **willybob** » 14 Aug 2009 20:29

I don't have a wiring diagram that shows colors of the wires. My 1975 Strada came from many years of storage with no battery, nor key. I have ordered a key from England LMN and in the meantime, Stuart told me how to get it running without the key by pulling the green wire loose from the ignition switch. What I don't know is the correct wire to battery terminals colors. Which wire is positive and which is negative? Original wiring harness.

Thanks

Bill

robinh44 · Post by **robinh44** » 15 Aug 2009 09:21

Bill

Firstly you do not need a battery to start the morini as it generates its ignition power as soon as the engine starts to turn. Stuart's advice is to disconnect the green wire as this earthe's ignition circuit when you switch off. If you disconnect the green you can then start your morini regardless of battery.
Below is a link to the wiring diagrams on the Morini Riders Club website, this should be helpful. Check if your ignition switch has 5 or 6 connections to get the correct diagram. Looking at the diagram the battery uses red for positive and blue for negative:-

http://www.morini-riders-club.com/thebi ... iring.html

Regards

Robin

willybob · Post by **willybob** » 15 Aug 2009 14:24

I am color blind and the chart is hard for me to discern the colors, so your help was greatly appreciated. I have a 5 wire switch, and as I knew the bike could start with the green wire disconnected, I was worried about the regulator and other electrics WITHOUT a battery installed.

I am installing the new battery today, a gel battery that is has the original dimensions of the 12n93b that was original. New oil, and if all goes well it should be fine, only has a little over 3000 miles on it. If it runs ok I will move on to the belt, supposedly new a couple of years ago.

mgill · Post by **mgill** » 24 Aug 2009 02:41

Bill, The (-) lead goes to ground the (+) lead goes to the fuse panel.
Hope this helps.
Mathew

Richard_Carrigan · Post by **Richard_Carrigan** » 24 Aug 2009 12:01

Bill,

Mine has two earth wires from the battery - one to an engine stud and one to a regulator mounting stud - but this might not be standard. Hope this helps. Richard

willybob · Post by **willybob** » 24 Aug 2009 12:21

Thanks for the information. Red is the hot lead and blue is ground. Got it running this weekend, but only on one cylinder, seems one carb is clogged up.

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