A new engine with drive-by-wire controls costs more than one with conventional throttle and shift. Yamaha’s F200 with electronic controls, for example, costs around 6 percent more than the mechanical version. What’s more, the drive-by-wire price does not include some rigging elements needed for electronic controls, including a binnacle and instrumentation. Unless you perform the rigging work yourself, labor costs for upgrading to a drive-by-wire motor will also increase versus retrofitting with a mechanical engine. That’s because the installing dealer needs to remove the old rigging and add new elements, such as a new control harness and sub-assembly cables, engine-control module, binnacle, ignition key and start/stop switch, and engine instrumentation.