'07 990S bought in early '08. 16,000kms+ of hard tarmac & pussy-like dirt riding, live in the middle-east, temps go 40+ DegC most of the year. No problems whatsoever with the bike.
just pulled my fuel pump apart today to give it a good look. everythink is Ok in there. posting pics on another thread.
seems like you either had a bad bike or bad (very) fuel all along.