Vintage Vespa Forum

Main fuse blows.

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Ricebiker Dave H.
San Leandro, California, USA   USA
The main fuse on the positive wire blows as soon as it's connected. So, clearly grounding out somewhere. I have the Haynes manual, but it leaves a lot to be desired. First of all, it doesn't have my bikes wiring diagram. 1980 p200e, I mean it shows a p200e wiring diagram but it's not like mine. I've got an extra pink wire at the regulator that comes right off of the positive wire. New regulator. I've got, no electrical except for headlight (which runs off of generator)
Is there a better wiring diagram I can get a hold of?

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