1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 247Get this manual

1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 247

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SHIMMING (FOR USA AND CANADA)

Find the forward gear shim thickness (T1) by selecting shims until the specified measurement (M) is obtained with the special tool
1 Calculate: Forward