1-5GENINFO ESPECIAL TOOLSA80000-0*SPECIAL TOOLSUsing the correct special tools, recom-mended by Yamaha, will aid the work andenable accurate assembly and tune-up.Improvising and using improper tools candamage the equipment.NOTE:l For U.S.A. and Canada, use part numbersthat start with ”J-”, “YB-”, ”YM-”, “YU-”or “YW-”.l For other countries, use part numbers thatstart with “90890-”.MEASURING1. TachometerP/N. YU-08036-A ............................ a90890-06760 ........................... b2. Mity vacP/N. YB-3595690890-067563. Pressure testerP/N. YB-0359590890-067624. Gauge blockP/N. YB-34432-16N.A.5. Adaptor plateP/N. YB-34432-10N.A.6. Gauge baseP/N. YB-34432-11N.A.7. Shimming gaugeP/N. YB-06344N.A.8. Shimming gaugeP/N. YB-397999. Pinion height gaugeP/N. N.A.90890-0670210. Digital caliperP/N. N.A.90890-0670411. Shimming plateP/N. N.A.90890-06701