Thanks for the reply. I fill some oil and see how it effects the sound. And after the valve clearance, timing and sync I migh empty the oil and remove the sump to look for evidence.
I have given a bit more of thought and I think I need to have a look at the ignition as well (judging by my sparkplugs together with my valve clearance). I will do a spark gap test together with valve clearance and another sync when I have the time and update the thread. But I don't want to do...
Hello
https://photos.app.goo.gl/Lczka93N3cYBWwwa6
*Edit. The clutch handle is held down in the clip so it's not engaged.
I have a 1983 CB 750 F2 RCO4
I have a worrisome sound from my engine that appeared a couple of days ago (or at least it is more pronounced). I've used a screwdriver and...