Yamaha F100B F100C Outboards Factory Service Manual, Page 173Get this manual

Yamaha F100B F100C Outboards Factory Service Manual, Page 173

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Shimming (F100B) Shimming
Digital caliper 4: 90890-06704 4 Install the thrust bearing to the drive shaft housing 6, and then measure the housing height (M3) as shown
NOTE: Select the shim