H0906A90A, H0906G90A, H0906X90A A 1990 SPECIAL TOOLS - TUNE-UP Parts on group SPECIAL TOOLS - TUNE-UP: Pos. Part No Qty Parts name Comments  . FT8978 [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 - GEAR HOUSING REMOTE CONTROL POWER TRIM UNIT STARTER STRAIGHT HUB PROPS MODELS 903F90A, 903X90A, 908F90A, 908X90A STRAIGHT HUB PROPS MODELS 906A90A, 906F90A, 906X90A SUPPORT PLATE SWIVEL BRACKET AND STERN BRACKETS MODELS WITH POWER TRIM SWIVEL BRACKET AND STERN BRACKETS MODELS WITHOUT POWER TRIM