I was out on my 1100GS yesterday . When in 4th and 5th accelerating the engine felt as if there was no power , as if the engine was just spinning. I stopped the bike and pulled away in second and third and it was pulling ok . If i tried to pull away in fourth engine was slipping. Is my clutch on its way out ? Had a new one fitted at 30,000 miles ago . Plate fitted only , false economy as ive read on here. My bikes a 1997 with 96,000 miles on it .Any help would be appreciated.would a dodgy pivot pin bearing cause this ??