2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 178Get this manual

2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 178

Lower unit Calculated number 0.310.40 0.410.50 0.510.60 Shim thickness (mm) 0.30 0.40 0.50 0.60

3Turn the ball bearing or times, and then measure the height from the ball bearing (M4) as shown

Available shim thicknesses: 0.1, 0.2, 0.3, 0.4, and 0.5 mm

Backlash
Measuring the forward and reverse gear backlash

S6AG6500

NOTE: Remove the water pump assembly before measuring the backlash Secure the drive shaft housing to the lower case using bolts (M8 25 mm)1Install the lower unit onto repair stand10 mm (0.39 in)

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