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. It is a VERY good catalog! It has parts in bulk. Amazon has parts in bulk. Get the 12" hemostat pliers or the 45 degree hemostat pliers to replace fuel lines. Cut the lines at a slant to ease installation. Use needle nose pliers to loosen stuck fuel lines. Work it back and forth to loosen it. Stens has diaphrams in bulk. Check the carb. model number and make for the right kit. Sometimes a Zama and a Walbro can look the same but have a different kit. Morrison Outdoor Equipment has parts and Brigg valve guide tools and valve guide bushings for Brigg lawnmowers. A CJ8 is a little hotter than a CJ7. A J19LM is a little hotter than a CJ8. LM stands for Lawn mower. A J61 is MUCH hotter.