D doble Member Apr 21, 2006 4 0 May 23, 2006 #1 Does anyone know how to set the powervalve timing for this bike? Turning the disc against spring tension increases preload which does what, makes it open at a later RPM or earlier? Thanks
Does anyone know how to set the powervalve timing for this bike? Turning the disc against spring tension increases preload which does what, makes it open at a later RPM or earlier? Thanks