Carburetor Spring

[tommyardin]

i have no experiance with the tps but it might be worth looking at it on its own and seeing if the movement feels 'notchy'
if it is it might be worth giving a clean with some electrical cleaner (might be some sh*te in it)
if there is damage to the rotational parts it might need replaced and you wont be happy as i am sure i read they are a bit pricey

Have a chat with Darrsi he is clued up on the TPS situation and knows where to source them at a good price.