FI Adjusting Devices

[bronsin]

Im thinking of buying a Honda motorcycle with EFI that has one of these devices installed along with an aftermarket muffler. You need the adjuster to alter the mixture since a different muffler was installed.

But I want to return the bike to stock. If I replaced the muffler with the origional and just disconnected the fuel injection adjuster, would the bike run as it previously did?

Or has the device changed something in the computer that needs to be reset before the device can be removed?

Thanks!