[skidlids]

Only time I had a similar problem was on my race bike at Castle Combe as a few of the Hants Guys will recall, in my case it was the linkage, the rose joint/rod end bearing that was connected to the gear lever had near enough seized and no amount of lubrication was going to free it off. So in the end I fitted a new rose joint/Rod end bearing, that cured the fault.