Im building a buggy with a 1990 xt600EA motor and I have only part of the origanal wiring harness. I need a wiring diagram It is different than the 1983-1989 service manual that I bought. Yamaha sells a service manual for this year for $60. I hope I can find a coppy of the diagram and save some money. If anyone hase any susgestions please let me know. Thank you Don