To remove the oil pump you must first remove the clutch and sprocket, there is a special tool that fits into the two cut a ways in the clutch so as to jar it off against compression ( left hand thread ) tool pt no. 530031112,this tool has a 19mm hex on top so as you can use a socket and brace, an impact gun will remove the clutch in seconds, do not be tempted to tap the clutch with a hammer and drift, the clutch legs are sintered and will snap off.once off remove the bar pad protection plate, remove the two philips screws securing the pump, pull the oil pick up pipe off, and remove the pump assembly. Useing a suitable tool, remove the oil pick up pipe from the tank ( you can only see the top of this in the tank, it has a white elbow press into it, this pipe has a filter on the end, clean this filter out before purchasing a new oil pump.
Husqvarna man, February 2010
