My buddy has an 03 F7 and hasn't cleaned his power valves yet since he owned it. (about 2500 miles) I took it apart today and was surprised it didn't seem that bad. BUT what is the best way to take them apart and clean them I got one of the long bolts out but other one is stuck won't come out. Is this the way to do it. and do you guys clean the cylinder out to and how with out getting allot of debrise inside?
Any help is needed thanks in advance.

scott