I've finally got the engine running on all four but is it just me or does it sound like there is a slight lagging popping or tapping sound. Before when cylinder 1 wasn't running in this vid. The engine just has a hum to it that more or less even. Is this a valve problem or is that a just normal? I did have to readjust the valves, and incidently the intake valve was loose on cylinder one when it ran on 3 cylinders. I dunno if I did any damage to the valve stem.
I've listened to some other vids and some are all over the place, I can't tell because of helmet cams or poor quality audio.