H0903F91A, H0906F91A, H0906G91A, H0906X91A, H0908A91A, H0908E91A, H0908F91A A 1991 SPECIAL TOOLS - TUNE-UP Parts on group SPECIAL TOOLS - TUNE-UP: Pos. Part No Qty Parts name Comments  . FT8978-1 [0] TIMING LIGHT FOR ADJUSTING IGNITION TIMING.  . FT8948-1 [0] PULLER TO REMOVE FLYWHEEL. Parts catalog : SPECIAL TOOLS - TEST EQUIPMENT SPECIAL TOOLS - POWER HEAD SPECIAL TOOLS - LUBRICANTS AND SEALANTS SPECIAL TOOLS - LOWER UNIT REMOTE CONTROL REED PLATE AND RECIRCULATION SYSTEM STARTER SUPPORT PLATE SWIVEL BRACKET AND STERN BRACKETS SWIVEL BRACKET AND STERN BRACKETS MODELS WITHOUT POWER TRIM THERMOSTAT THERMOSWITCH