One of my Jensen cast iron genny's barely lights the correct Jensen globe.
With the lights dimmed in the room and a 20G going flat chat driving the genny I can see a feint glow of the filament.
Any hints?
Jensen magnets are notoriously weak and sometimes need to be re-magnetized.
Very true, find a bloke in your area that dabbles in hit n miss engines & he'll be able to help you. The top piece of the magnet set is the only part that's magnetized.