I have a 20+ year old MTD Yard Machines riding mower. I’m not much of a mechanic but over the years I have managed to keep it running. No real engine work, but just about everything else has needed attention at one time or another.
I’ve been thinking about doing an electric conversion on this one but felt like it was a bit too much out of my skill set. Saw some plans on line but many of them seem already dated. With all the eBikes, electric motorcycles, scooters, etc around these days, the technology has really matured and lots of components are available that would make this much easier than it would have been even a year or two ago.
You can even buy new electric riding mowers at Home Depot now, but they tend to be pricey ($2500+), and that may be the right way to go, but where is the fun in that? Can’t say I’ve decided to convert the old mower, but might start putting some notes out here as I go along.
Most of the early decisions would be around the engine. It is a 14 HP. Should I just replace it with a suitable electric motor? This seems to be the simplest way at first.
Another approach is to use one motor to drive the wheels, perhaps directly from the rear, and two smaller motors to drive the blades. This eliminates all the pulleys, belts and transmission functionality and could make for a clean simple design. I’m leaning toward the three motor solution, but need to look at the rear transmission.
BTW, this lawn tractor / riding mower seems to be a popular if not durable beast. Lots of YouTube repair videos out there which can give you some ideas and a good look at the internals without having to take the machine apart.