Converting an ES to footshift isn't as easy as just putting a shifter on the hex shaft. First, you will have to pull the motor. Next, take the shift motor off and remove the two pendulum gears underneath it. This will disconnect the shift motor from the transmission so you won't be fighting the reduction gears. Put some RTV on the shift motor and reinstall it to seal the crankcase cover. Then, remove the rear crankcase cover and look for the retaining bolt that holds the ES shift spindle in. Remove that bolt, take out the ES spindle, go ahead and replace the shift sindle oil seal, and replace the ES spindle with a foot shift spindle. The splines are keyed and will only go in one way. Put the retaining bolt back in and put the crankcase cover back on. Now, you will have to do some wiring harness mods. Look for the big gray plug behind your right rear tire. There is a green wire with a red stripe on it. You will need to ground that wire to the frame to bypass your neutral lockout so the bike will crank in gear because it won't register that its in neutral to crank. The side effect to this is that your neutral light will always be on (I blacked mine out with a paint marker). Finally, reinstall the motor, put an OEM footshifter on it, and either cut your floorboards to clear the shifter or put a footshift floorboard on it. All of this is a bit of a pain in the ass, but it is the corrrect way to convert one. Just putting a shifter on the hex shaft will work temporarily, but the shaft is much longer than the footshift spindle, and sideloading while shifting will eventually cause problems. There's a good video on YouTube that goes over the basics of how to do all this. Sorry, but I don't have a link to the video at the moment.
