There should be one BIG wire going from ground (back of transmission, normally) to the negative terminal. Â
(be nice to that bolt on the transmission! Â Don't want to strip those case threads)
There should be one BIG wire going from the starter to the positive terminal. Â It is probably red under the black sheath.
There should be one small wire going from the wiring harness (starter relay) to the positive terminal. Â It should also be red.
I don't know what year bike you have, but you should be able to find the wiring diagram here:
http://www.pbase.com/tomfarr/electricalFeel free to copy it to your computer.