Leaky exhaust system ?

[Edwin 59]

When I put my hand over the end of the silencer with the engine running the pressure only builds up so far - it doesn't force my hand off or try to stall.  

 

Is this normal please for a stock exhaust on a 2015 NC750X ?

[Guest machinman]

Be careful you don't get CO poisoning!!!

There is a hole underneath toward the rear, perfectly normal.

[Griff 1,556]

Needless to say it does no harm also to check the clamp on the silencer.

[Edwin 59]

Thanks chaps.