+ 1 on the NGK's, and buy them from NGK. They were even cheaper than local places and you know they are not fake.
+1 on test running them with a load. I do every quarter.
+1 on don't shut them down with a load still on.
+1 on run the carb dry and drain it.
+1 on frequent oil changes.
A sheet of plywood or even cardboard propped up with a sawhorse between it and your home can help with the noise. Don't block cooling or exhaust.
I also spin them over a couple of times to splash some oil around before I turn on the gas, when starting them after sitting.
And non ethanol is your friend. Stabil does not help but a few months-if that.
On the magnetism issue, there are videos that can help possibly. The one I saw, the guy plugged in a 120v hand drill and spun it by hand, seemed to fix his. Gen was off, the drill backfed the gen magnets I guess.
+1 on test running them with a load. I do every quarter.
+1 on don't shut them down with a load still on.
+1 on run the carb dry and drain it.
+1 on frequent oil changes.
A sheet of plywood or even cardboard propped up with a sawhorse between it and your home can help with the noise. Don't block cooling or exhaust.
I also spin them over a couple of times to splash some oil around before I turn on the gas, when starting them after sitting.
And non ethanol is your friend. Stabil does not help but a few months-if that.
On the magnetism issue, there are videos that can help possibly. The one I saw, the guy plugged in a 120v hand drill and spun it by hand, seemed to fix his. Gen was off, the drill backfed the gen magnets I guess.