Hi all Dug out the ultraflex B89 single control unit from the depths of the garage today with a view to fitting to my 23. However it is very stiff and the clutch/gear lever won't move at all. Manage to prise it apart. The grease has turned into a thick sticky treacle so it will need to be cleaned out. Nothing appears to be broken. Is there a special grease for these or will ordinary LM grease do? have Googled but no info only new ones at great expense.