Yamaha F150A, Service Manual

Page: 370 / 493

8-63
Drive shaft and lower case (counter rotation model)
3. Remove the needle bearing. See step 3
in “Disassembling the lower case” (8-22).
Checking the pinion
See “Checking the pinion” (8-22).
Checking the reverse gear
1. Check the teeth and dogs of the reverse
gear. Replace if cracked or worn.
Checking the drive shaft
See “Checking the drive shaft” (8-22).
Checking the lower case
See “Checking the lower case” (8-23).
Assembling the reverse gear
1. Install new needle bearings. See step 1
in “Assembling the forward gear” (8-23).
2. Install a new roller bearing inner race “1”.
TIP:
Face the bearing identification mark “a” on
the roller bearing inner race “1” up.
Assembling the lower case
• Use heat-resistant gloves. Otherwise,
burns could result.
• To prevent fires, remove any flammable
substances, such as gasoline and oil,
around the working area.
• Keep good ventilation while working.
1. Install the original forward gear shims “1”.
TIP:
Do not reuse a shim if deformed or
scratched.
2. Heat the area of the lower case where
the roller bearing outer race is to be
installed using a gas torch, and then
install the roller bearing outer race “2”.
When heating the lower case, heat the
entire installation area evenly. Otherwise,
the paint on the lower case could be
burned.
3. While holding the special service tool “1”,
strike the tool to check that the roller
bearing outer race is installed properly.
Bearing inner race attachment “2”:
90890-06660
1
1
2
2
a
Driver rod LL “1”: 90890-06605
Ball bearing attachment “2”: 90890-06629
1
2
2
1
1
2