RE: Sound-level with new engines
Vince
For sure we are using Hyde- mounts, My friend with the Genesis/YS160DZ has the recommended one from Hyde together with the YS nose-ring. On my Oxalys with OS200 i have made a Hyde-type of mount myself, this is softer and reduces vibration and noise a bit better, but with the disadvantage of slightly more engine-movement.
If your curious, take a look at home.online.no/~ofremmi
I think the question is : does anybody care to even measure ?