Repair Clinic and E-Replacement Parts have parts. E Replacement Parts has exploded views of equipment. Stens has a FULL-LINE catalog for ALL kinds of 2 and 4 cycle equipment. Amazon has it. Use needle nose pliers to loosen stuck fuel lines. Work them back and forth to loosen it. Amazon has a Oregon tach which you touch the spark plug wire to set the idle. It works on single cyl. 2 and 4 cycle equipment. It has lo and hi RPM'S. Amazon has parts in bulk. Get Amazon's 12" hemostat pliers or the 45 degree hemostat pliers to replace fuel lines and filters on chainsaws. Cut lines at a slant to ease installation. Repair Clinic has a oil pump gear remover tool to replace the oil pump gear on Poulan chainsaws. Amazon has a 2 cycle piston ring compressor set. Amazon has a clutch tool and a piston stop tool set to replace the clutch on chainsaws. Set the lo mixture for highest RPM's at idle and hi mixture for highest RPM's at full-throttle. Set the idle just until the chain just stops turning. Amazon has mixture tools individually and in sets.