Isn’t there something wrong with that graph if torque and power cross at 7000rpm like that ?
Personally I always preferred the looks of the earlier none powervalve model. Might have something to do with the superfast / super hot girl that rode one with another crowd. Sadly, she was older than me and generally out of my league!
No nothing wrong with the graph, they really have another power band above 7000 rpm – I don’t have a YPVS but I do have a modified 350 LC that would blow off a un-tuned YPVS yet still do the Sat shopping in a High Street, it has with YPVS reed blocks, Part TZ and LC crank that I can rev to 12,000 the original carbs were junketed in the bin as they gave an over rich mixture at 7000 in top gear which was exactly 70mph on Yamaha gearing, these carbs are a standing joke from Yamaha.