hayden
Veteran Member
The B series definitely have a governor on the engine. It's an integral part of the injector pump and varies the fuel injection rate to maintain constant engine across varying engine loads. Because of it, the engine RPMs should remain pretty much constant regardless of whether you are sitting still, have your mower engaged, or are mowing heavy grass. At some point of course the fuel is being delivered at maximum rate and the engine will no longer be able keep up and will start to lose RPMs. But, this loss of RPMs shouldn't happen until the engine is delivering it's full 30 or 40 HP or whatever it produces.
It's certainly possible, but I'd be real surprised if the Ls don't have governors. I just assumed that all modern tractors have them - afterall, even the simplest lawn mower engine has one.
It's certainly possible, but I'd be real surprised if the Ls don't have governors. I just assumed that all modern tractors have them - afterall, even the simplest lawn mower engine has one.