They use to be helpful with technicians answering your question, not anymore.
Kawasaki don't replace any engine instead they repait it, kind of cheap company.....
Now in province of Quebec we have Consumers protect and small claims : Le plafond des réclamations aux petites créances passe à 15 000 $ | ICI.Radio-Canada.ca
, sorry it's all in french.
But you need to make a thread on facebook and everything, companies are very sensible to bad publicity.
What kind of aftermarket part you got on zx-14r ? Flash ecu, full exhaust ?