Back Fire Hypermotard 821from 2014

Discussion in 'Technical Help' started by BobIvan, Apr 24, 2020.

  1. Hi,
    For few month now I have the following issue, and no mechanic in Hong Kong are able to find the problem.
    Ridding the bike, when I close the throttle, using engine break, and my RPM goes bellow 2.500, suddenly there is huge back fire from the exhaust (obviously). Watching the display set on consumption (Liter/100km), i can see figures that are moving from 2,5 up to 20 (injection still on ??)... It will stop when the bike is stopped, or if I open the throttle again ...
    I seems that it happens when it is humid or raining ...
    Any clue to save my bike ? Thanks
     
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