If you enjoyed reading this article, please click here to view it on Kropotkin's site, MotoGP Matters. ----------------- After four years of struggle, Yamaha is closing the gap on its rivals. Its new MotoGP project leader Takahiro Sumi tells us how Yamaha only won two races during 2019 but, inch by inch, the factory began to close the gap on Honda and Ducati. The reasons were a better engine, improved electronics and less messing around with chassis set-up, especially so that Maverick Viñales could focus more on his riding. The arrival of remarkable rookie Fabio Quartararo also helped, by putting the proverbial rocket under Viñales and Valentino Rossi.