Yamaha F400A 2022 - Checking the Propeller Shaft; Checking the Dog Clutch; Checking the Propeller Shaft Housing

8-21
Propeller shaft housing (regular rotation model)
2. Remove:
• Needle bearing “1”
3. Remove:
• Tapered roller bearing (outer race) “a”
When heating the propeller shaft housing,
heat the entire installation area evenly. Oth-
erwise, the propeller shaft housing could
be damaged.
TIP:
Heat the installation area of the tapered roller
bearing outer race in the propeller shaft hous-
ing “1” using a gas torch, and then remove the
tapered roller bearing outer race “a”.
Checking the propeller shaft
1. Check:
• Propeller shaft
Damaged/worn → Replace.
2. Measure:
• Propeller shaft runout
Above specification → Replace.
Checking the dog clutch
1. Check:
• Dog clutch
• Shift plunger
• Cross pin
• Spring
•Balls
•Slider
Cracked/worn → Replace.
Checking the propeller shaft housing
1. Check:
• Propeller shaft housing
Cracked/damaged → Replace.
Driver rod LL “2”
90890-06605
Needle bearing attachment “3”
90890-06933
Driver rod LL “2”
YB-06605
2
1
2
3
1
1
3
Runout
0.02 mm (0.0008 in) (F400AS-
TU, F400ASTX, F450AVTU,
F450AVTX)
1
a