Well, the document says 1950-1988, but it really doesn't cover any engine earlier than a D-400. There were several older engine configurations, if you cover all the way back to 1950.
You can find Service Manuals for most Lawn-Boy models at the Lawn-Boy Support Center, just enter your model and serial number and see what's available.
You can find Service Manuals for most Lawn-Boy models at the Lawn-Boy Support Center, just enter your model and serial number and see what's available.
You can probably get that the parts manual from the Lawn-Boy Support Center as well, but it seems to be down right now. Will this work in the meantime:
