Augusto Fernandez on the 1000cc V4 Yamaha. Article continues below ADVERTISEMENTArticle continues below ADVERTISEMENT“We've been in Jerez last week, trying things, going forward with developing the bike. Article continues below ADVERTISEMENTArticle continues below ADVERTISEMENT“We know the engine is our weak point, but also the chassis; we kind of lost a little bit of the performance of our chassis. Asked by Crash.net whether he feels the 850cc machine has more potential than the current 1000cc V4, Fernandez confirmed:“Yeah, I think so.” Article continues below ADVERTISEMENTArticle continues below ADVERTISEMENT“But the most difficult thing is [adapting to] the tyres.”