👍🏻👍🏻👍🏻👍🏻 nice feeling to find out that it was something simple
Yeah because it sounded so much like a tappet or chain problem...I think because these are Chinese I (for one) tend to think the worst first.
And as it works out that shield is mounted to the frame so with engine being mounted on rubber, the movement would touch it....actually spank it against the spring with every cylinder firing.
So, if you hear weird stuff, take a real close look. It may be something as easy and stupid as this.