I am fighting with this issue. The bearing cup is 'free' because the 3 bolts (3/8" heads, not 10mm ) are free but the variable speed pulley will not release from the top and force on the shaft is not feasible or wise. The diagram shown by Star Tech is consistent with what I have. If my dad...
I am wondering if it is possible to adapt an 8HP engine to the 4HP unit I currently have. The carb is probably junk and the unit really needs more power but I do not want to pay the rather high price. Thanks!