Tristan: it is stock, I will go home and dig it out, make sure its ok, then you can come get it anytime
John: It shouldnt cost a lot, the thing that stops it working is a paper filter that breaks down and clogs the line, you guys seem cluey enough so perhaps a few of you could do it, you just have to take apart the whole system, lines, pumps ect get the sludge out then put it all back and bleed the system as per the manual. after you do it you will notice all of a sudden the tourqe split needle is much more active!