if it has the two cdi's its a mc16 coz the mc18 has a single cdi called a pgm1 and then they go up with the models to pgm4. the mc 18 digram i would think is use-less but here is a mc 16 one u can download

http://www.dreamgate.ne.jp/nsr/service%20manual/wiringdia/mc16wiring.html