Question about Piaggio SM 125 MIG Motorcycles
My piaggio sfera 125 was running great until i parked it up over the weekend now there is no life from the ignition (no horn,lights,indicators etc. and it wont start) there is plenty of life in the battery even tried jump leads still nothing. stuck a meter on the ignition wires and no power checked the main fuse and not blown could it be the Regulator / Rectifier?
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Posted on Jan 02, 2017
SOURCE: connecting wire from regulator
The large wire from the voltage regulator goes to the Positive side of the battery. As an alternative, you can also connect it to the starter where the large cable comes from the battery positive terminal to the starter. I think that's where most Softail models have the regulator wire connected.
If you connect it to the starter, all this does it make it a bit easier to connect since the battery is inside the horseshoe type oil tank. Basically, you are using the battery cable as an extension cord to the battery to keep from having to fish the wire up to the battery.
Posted on Feb 01, 2010
if the horn and the indicators are on the same handlebar maybe it is a problem with the operation there?
Posted on Feb 06, 2010
Testimonial: "i will try that ,thanks for your advice"
Not always necessary to change the regulator/rectifier. Check all connections to make sure they are clean, use a good contact cleaner and finish off with dielectric grease on your electrical connections.
When some bikes get a few years on them the connections get dirty. Check to see if there are any burned or discolored wires anywhere around the regulator. The FIX on some bikes is to cut the connector completely out and solder the wires together and either seal them with heat shrink of a good electrical tape. Loose or bad connections get hot. As long as the regulator and rectifier are working there is no need to replace them if the connections are good.
Ride Safely, Ed
Posted on Apr 09, 2010
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