Yamaha F50 Service Manual
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62Y3A116-2 1 2 3 4 5 6 7 8 I Bearing splitter plate YB-06219 Drive shaft needle bearing remover and installer YB-06063, YB-06155 Drive shaft needle bearing depth stop YB-34473, YB-34474 Drive shaft taper roller bearing cup installer YB-06110 Forward gear bearing cup installer YB-06109, YB-06276-BPinion shim selecting tools YB-34432-8, YB-34432-9, YB-34432-10A, YB-34432-11A, YB-34432-17 Forward gear shim selecting tools YB-34446-1, YB-34446-3, YB-34446-4, YB-34446-5, YB-34446-7, YB-34446-15 Shift rod push arm YB-06052 Backlash indicator gauge YB-06265 Magnetic plate YB-07003 Special service tools
LOWRLower unit 6-362Y3A11 Dial gauge YU-03097 Magnetic flexible stand YU-34481 Bearing housing oil seal installer YB-06269 Gland nut wrench YB-34447 Crank upper and lower seal installer YB-06244Forward gear needle bearing and tapered roller bearing installer YB-06200 Bearing housing puller claw 90890-06564 Stopper guide plate 90890-06501 Center bolt 90890-06504 Bearing separator 90890-06534 For worldwide
62Y3A116-4 1 2 3 4 5 6 7 8 I Stopper guide stand 90890-06538 Bearing puller 90890-06535 Bearing puller claw 1 90890-06536 Needle bearing attachment 90890-06607, 90890-06610, 90890-06611, 90890-06612, 90890-06614, 90890-06653 Driver rod L3 90890-06652Driver rod SS 90890-06604 Bearing depth plate 90890-06603 Bearing inner race attachment 90890-06639, 90890-06641, 90890-06643, 90890-06644, 90890-06661, 90890-06662 Drive shaft holder 4 90890-06518 Pinion nut holder 90890-06505 Special service tools
LOWRLower unit 6-562Y3A11 Socket adapter 1 90890-06506 Bearing outer race puller 90890-06523 Outer race puller claw A 90890-06532 Driver rod SL 90890-06602 Bearing outer race attachment 90890-06621, 90890-06622, 90890-06626, 90890-06627Driver rod LS 90890-06606 Driver rod LL 90890-06605 Pinion height gauge 90890-06702 Digital caliper 90890-06704 Shimming plate 90890-06701
62Y3A116-6 1 2 3 4 5 6 7 8 I Shift rod push arm 90890-06052 Backlash indicator 90890-06706 Magnet base plate 90890-07003 Dial gauge set 90890-01252 Magnet base 90890-06705Ring nut wrench 3 90890-06511 Ring nut wrench extension 90890-06513 Bearing housing puller claw L 90890-06502 Ball bearing attachment 90890-06655 Socket adapter 90890-06507 Special service tools
62Y3A116-8 1 2 3 4 5 6 7 8 I No. Part name Q’ty RemarksTightening torques Stage N·mkgf·mft·lb 1 Lower unit 1 2 Plastic tie 1 Not reusable 3Hose 1 4 Check screw 1 7 0.7 5.1 5 Gasket 2 Not reusable 6 Bolt 4 M10 × 40 mm 40 4.0 29 7 Drain screw 1 7 0.7 5.1 8 Dowel pin 2 9Bolt 1 M8 × 35 mm 10 Anode 1 11 Bolt 1 M8 × 60 mm 12 Thrust washer 1 13 Propeller 1 14 Washer 1 15 Washer 1 16 Cotter pin 1 Not reusable 17 Propeller nut 1 35 3.5 25 18 Trim tab 1 19 Bolt 1 M8 × 20 mm Lower unit (F50/F50A)
LOWRLower unit 6-962Y3A11 Removing the lower unit 1. Drain the gear oil. For draining proce- dures, see Chapter 3, “Replacing the gear oil.” 2. Set the gearshift to the neutral position, and place a block of wood between the anti-cavitation plate and propeller to keep the propeller from turning, and then remove the propeller nut and propeller. WARNING Do not hold the propeller with your hands when loosening or tightening it. Be sure to remove the battery leads from the bat- teries and the engine shut-off switch. Put a block of wood between the cavitation plate and propeller to keep the propeller from turning. 3. Disconnect the speedometer hose 1 . 4. Mark the trim tab 2 at the area shown, and then remove it.5. Loosen the bolts, and then remove the lower unit from the upper case.
62Y3A116-10 1 2 3 4 5 6 7 8 I — MEMO — Lower unit (F50/F50A)
LOWRLower unit 6-1162Y3A11 Water pump and propeller shaft housing (F50/F50A)6