Yamaha boss Lin Jarvis says the Iwata marque's tough 2018 MotoGP campaign, during which it entered its longest losing streak, was a “consequence” of mistakes made “two years ago”. Yamaha went 25 races between Valentino Rossi's win at Assen last year and Maverick Vinales' Phillip Island success without scoring a victory – its longest dry spell in its premier class history.  Both Rossi and Vinales – who finished the campaign third and fourth in the standings – struggled all year with the M1's engine and electronics, and high tyre wear as a result, which were issues plaguing them throughout '17 also.  When asked during a...
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