To test your bike you will need a Volt/Ohmeter (VOM) capable of testing a 12v system. Digitals are nice since the provide unmistakable reading. You can buy one for $40 bucks or so or ask around is see if you can borrow one. Next you will need a method to connect this to the electric system on your bike if you plan to do a road test. I already had a two prong trailer connector attached to my battery so I could plug in a trickle charger in the winter. If you don't have one it is easy to attach one. If you use a two prong connector similar to the one I used you need to remove the battery cover and hook one wire up to the + side of the battery and one to the - side of the battery. Putting a fuse in the + line is a good idea also. If you click on the picture above right you will see that I wired the hot side to the recessed portion of the plug so as to not have an exposed hot lead. I have an extra set of leads to my ohmeter with the same connector and some added wire. If you are using the plug wired as I mentioned above then remember to wire the connector in reverse, ie the exposed portion of this plug is hot and the recessed is negative. Wiring this up only needs to be done if you plan on doing a road test. I then took some 'terrorist safety' tape (duct tape) and taped the ohmeter to my bike. You might not want to do this. I taped mine to the center console on the black portion just below the speedo and only ran the tape to the chrome edges. Didn't wanna run the tape over on the paint just in case. Once you have appropriately mounted the VOM and made sure that all the wires are away from hot things you are ready to road test and compare your findings.