A 42" blade, 7 speed, Yardman older riding lawn mower. Just need to locate the fuses for now.

Hi,
Could be in a few places depending on the age/model. At any rate it is in the small red wire connected to the + terminal of the battery. It will be near the solenoid usually. Most common olace for both is beneath the plate between the seat and dash column and requires the removal of the shift knob and two screws to remove. Both are beneath the left front corner of the seat. Another place is next to the battery and requires the removal of the battery and its tray to see them. Still on the left. The last places are beneath the hood and monted beside the tank or beneath the tank. Tracing the small red wire should find it for you. If it is in the first place, it is often visible by looking through the shift slot from right fron the left rear.
Peace,
Clarke