Yamaha YBR possible engine damage?

[LoneWolf]

So I was riding home a few nights ago and stupidly money shifted my bike accidentally going along a dual carriageway. I lost some power and thought it was going to cut out and shot a flame out my exhaust pipe. The bike seemed to ride back home fine and regained most if not all of its power. It still runs albeit with a slight tapping noise which I assume is coming from the valves this tapping disappears at high rpm but I’m concerned that I’ve done some internal damage, anyone able to help?

[Mississippi Bullfrog]

I'm not sure what you did - 'money shifted'?

 

If it was just a missed gear change then you won't have done any damage as the engines are rev limited, false neutrals happen.

 

If in doubt check the vavle clearances.