DS650 steering geometry

Hi Members. I’m working with a fairly old 2000 Ds650 and trying to improve the steering stability. I’ve lowered the suspension as the bike will be used on high speed smooth roads. Presently it requires quite an effort to begin a turn then quickly changes to an oversteer situation. I see somewhere that the makers may have changed the front a arms to improve the steering at around the 2003 year. Any idea if that is correct and what geometry (camber,caster, kpi, etc) would be suitable in my usage. Any advice would be appreciated.