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Old August 27th, 2017, 08:27 PM   #1
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Joined: Jul 2017
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Throttle Blip Knocking sound?

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


Last edited by bongoz; August 27th, 2017 at 08:33 PM.
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Old August 27th, 2017, 10:01 PM   #2
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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.
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Old August 27th, 2017, 10:25 PM   #3
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I've never heard that. Not sure what it could be. Maybe the throttle servos or some kinda backfire.
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Old August 28th, 2017, 07:38 AM   #4
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I Ride: 13' Hyperstrada, 00' M900Sie
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..
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