If you enjoyed reading this article, please click here to view it on Kropotkin's site, MotoGP Matters. ----------------- Maverick Viñales has topped the first day of testing at Valencia, just as he did a year ago. The Movistar Yamaha man was two tenths quicker than the Frenchman Johann Zarco on the 2017 Yamaha, and three tenths quicker than newly-crowned 2017 MotoGP champion Marc Marquez on the Repsol Honda.