1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 233Get this manual

1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 233

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GEAR HOUSING
NOTE: If impeller is not going to be replaced, DO NOT install impeller in reverse rotation to its original state as vanes have taken setVanes will crack and break shortly after outb