Lawn-Boy (a Toro brand) has owner's manuals available at LawnBoy.com in PDF format. Not all manuals may be available, but one nice feature of the site is that it breaks different models down by the year they were manufactured. You can also find mower safety manuals on the Lawn-Boy site.
If you want to see a list of Lawn-Boy models, along with engine types and specs, check out this Lawn-Boy quick reference guide. And you can find a Lawn-Boy alternator identification and troubleshooting guide on the Toro website.
Some Lawn-Boy mower manuals are listed here:
- Lawn-Boy 10270 / 10360 / 10361 / 10362 / 10363 21" Silver Series 6.5 HP Lawn Mower
- Lawn-Boy 10356 / 10357 / 10358 Silver Series Lawn Mower
- Lawn-Boy 10603 / 10604 / 10606 / 10623 / 10624 20" Mulching/Rear Bagging Lawn Mower
- Lawn-Boy 10640 / 10640C / 10641 / 10641C / 10642 / 10642C / 10643C / 10644C / 10645 / 10646 / 10647 20" Mulching/Rear Bagging Lawn Mower
- Toro / Lawn-Boy Walk Behind Power Mower Drive Systems