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If it was 100% original, I'd say preserve. The tank, the wheel and the rust pushes me over to the restore column.
I'd just get it running and let it idle forever in your shop as music... the low RPM capability of those engines is very zen.I'd also start sourcing the right parts to restore it.Edit: got the engine confused with the Falcone, 500. That's the low idle magical one. (I misread where you said 500cc)https://youtu.be/-j_B-ZbmjLI
I sent my MCR4E to Marco Valenti for reconditioning. He sells all the parts but persuaded me to send him the whole unit. I was nervous about this, but within 3 weeks the magneto was returned with new coil, condensor and bearings. Cost including return postage (to UK) was 180, which seems to be somewhat less than half the price of a UK overhaul of a Luca / BTHhttps://valentimotorestauri.com/en/
Really enjoying this one. Thanks for sharing all this. It's my understanding that the shine on the black oxide starts from the shine of the bolt. Have you tried polishing a stud then see how that turns out? Can't wait to see if the baked ACF-50 does the trick. The Le Mans SE have black bolts, so this is exactly what I need to know how to do! Thank you.
Does the baking set the finish in more, or is it just to cook on the acf-50?
the nut is split on the side, how tight did this nut get hammered to split like this?