Yamaha F150A Service Manual page 307

Shimming check sheet ............................................................ 8-67
Measuring the forward gear backlash and
reverse gear backlash before disassembly ............................. 8-69
Shimming procedure ............................................................... 8-72
Shim location ........................................................................... 8-72
Selecting the pinion shim (T3) ................................................. 8-73
Selecting the propeller shaft shim (T4) .................................... 8-73
Measuring the forward gear backlash ..................................... 8-74
Adjusting the forward gear shim thickness (T2) ...................... 8-74
Measuring the reverse gear backlash ..................................... 8-76
Adjusting the reverse gear shim thickness (T1) ...................... 8-76
Lower unit
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