Yamaha 115-225 HP Outboards Service Manual, Page 153Get this manual
_ 7) If the feeler gauge(s) are loose fit, then remove shims until the feeler gauge(s) (set at the specification) just fit between the tool surfaces
Available shim thicknesses: 0.10, 0.12, 0.15, 0.18, 0.30, 0.40 and 0.50 mm
Reverse gear shim 1) Find reverse gear shim thickness (T2) by selecting shims until the specified meas urement (R) with the special tool is ob tainedSpecified Measurement (M)V4N6: 1.80 mm-Rl100 mm 2251.00 mm-Rl100 mm
If the value is negative (- ), then add the value to the measurement