Dellortoman: Russian Igor solutions work sometimes ;o)
Doesn't mean in the future you have to dissemble the Generator/Alternator, clean, Lube, replace the brushes and polish the commutator contacts on the stator rather then paying for a new charging unit and regulator.
Just remember to use a pin to lift the brushes off the commutator when dissembling and reassembling.
FUCK - I had to pay $900 for a thrashed starter over suck wiring on my 750 SF0 back in 73 - Imported from the Breganzie Factory. I paid $1,600 CDN for my New SFO back then. Don't think I don't take Charging Circuits seriously.
Off course I had to clean that generator 2 or 3 times in 45 years and replaced the regulator once.
Dried out rotting gaskets are the biggest threat for a Breganzie when you don't use her.