Yamaha have been docked 50 MotoGP world championship constructor points after using unauthorised engine parts from a different supplier following their early-season reliability troubles. The Japanese manufacturer suffered issues with the valves utilised on its V4 powertrain early on in 2020, as Valentino Rossi and Franco Morbidelli were forced to retire in the Spanish and Andalucian Grand Prix’s respectively.   According to Autosport, Yamaha subsequently elected to replace the faulty valves on several engines used by both its factory and satellite premier class operations with those from a secondary supplier.    Due to the updated engines not matching those supplied by...
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