Re: Noisy Engine
Yeah, I've heard a lot of people complaining of noise from the clutch cover, and resolving it with thin cork or rubber inside the clutch cover. I haven't gotten to mine yet; it's been too cold, and it's not noisy enough to really bother me.
Another place I've seen people talk about noise is from the fins on the cylinder. I've seen mention of folding up small, sturdy pieces of rubber and putting those in between the fins. Not enough to prevent airflow, of course, just to keep the fins from ringing from vibration.