Before you go and buy another one, get out the old one and see how much travel it has left, It may be stuck/seized.
Invest in a Haynes manual, It takes the guesswork out of it.
If you go to
www.mcnninjas.co.uk there are many links for the uk which you will find useful.
Ash
Live to ride, Erm Erm, Where are my Car Keys ?