I have about 14 of these units to sell. They have been simplified,with no throttle control.set up like original lawnboys with the governor spring adjusted to speed.also the ground speed is set at speed of 3rd gear like the 3speed models. These are not slow mowing machines.I researched and designed these for commercial application. All units have the safety's switches,minus the brake pad that will damage the flywheel. All units are 99-2002 year models. Call nick at 281-850-2000.