Crankshaft diagram
Part #430164
Replaced by #29774
Replacement parts diagram
Part #630931
Replaced by #49-002
Crankshaft diagram
Part #510105
Replaced by #510319
Crankshaft diagram
Part #650123
Replaced by #651081
Engine/ chain and guide bar diagram
Part #319H
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Part #630739
Replaced by #630739
Crankshaft diagram
Part #510106
Replaced by #510106A
Crankshaft diagram
Part #650272
Replaced by #650517
Crankshaft diagram
Part #510109
Replaced by #510109A
Replacement parts diagram
Part #630751
Replaced by #630751