Join Date: Oct 2014
Location: Washington State
You don't want to tear the engine out and overhaul the top end do you? I would look at more possibilities for a chirp before the valve train. Not a normal valve looseness sound.
Someone mentioned the headlight bucket and I remember other guys talking about that too. Just wrap a few wraps of electrical tape around the front trim and bucket, and ride just to eliminate that possibility. Easy to get electrical tape off cleanly.
I like your expression about "coal". You mean carbon build up on top of the pistons causing higher compression and possible pinging under acceleration. Easy test is to put in premium fuel and it will change it if that is a problem.
Go around your bike and tap on anything attached with a rubber mallet or just the side of your fist to see if any thing makes a sound. I had my horn bracket crack and made some weird squeaky buzzy noises until I discovered it broken.
Only a biker knows why a dog sticks his head out of a car window.
1983 750 Shadow
From the past
1951 Cushman scooter
1962 Honda 305 Dream
1965 Honda 305 Dream
1971 Honda 175 scrambler