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Throttle Blip Knocking sound?

Joined Jul 2017
4 Posts | 0+
Vancouver Island
Hi all. Recently bought a 2013 Hyperstrada used from an older gentlemen, he had all the service records and everything. Bikes been very well maintained with 9000 miles.

Recently noticed a knocking sound just like this video I came across, except it doesn't happen as often. (might have been able to replicate it once within the time of the video)

It only happens when I blip/rev the throttle at a stand still. The bike does have a rexxer tune up optimised for 91 octane and the tank currently has 94 octane (Highly doubt that's an issue?)

Any ideas as to what this could be and if it's a big issue? Obviously bike is out of warranty so hopefully it's nothing catastrophic :confused::confused:

https://www.youtube.com/watch?v=xzFbW97CeD8
 
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Mine will occasionally do that as well - sometimes if I throttle blip at a stop its like nothing happens besides a knocking sound. I'm not sure what it is, I'm writing it off as a fuel injection issue and ignoring it for now, since it happens so rarely.
 
I've never heard that. Not sure what it could be. Maybe the throttle servos or some kinda backfire.
 
Mine does that as well. Happens more frequently after installing a slip-on. I've been in the market for a used rapidbike evo to see if I can solve it! The fueling is awful after putting in an intake and exhaust..