Yamaha F200B, Service Manual

Page: 398 / 579

LOWR
Lower unit
8-35
Removing the drive shaft
1. Remove the pinion nut. See step 1 in
“Removing the drive shaft” (8-25).
2. Remove the oil seal housing, pinion
shims, thrust bearing, drive shaft, pinion,
thrust bearing, spring, and washer.
3. Remove the forward gear assembly.
Disassembling the oil seal housing
1. Disassemble the oil seal housing. See
“Disassembling the oil seal housing” (8-
25).
Disassembling the forward gear
1. Disassemble the forward gear. See “Dis-
assembling the forward gear” (8-25).
Disassembling the lower case
1. Disassemble the lower case. See “Disas-
sembling the lower case” (8-25).
Checking the pinion and forward
gear
1. Check the pinion and forward gear. See
“Checking the pinion and forward gear”
(8-26).
Checking the drive shaft
1. Check the drive shaft. See “Checking the
drive shaft” (8-26).
Checking the lower case
1. Check the lower case. See “Checking the
lower case” (8-26).
Assembling the lower case
1. Assemble the lower case. See “Assem-
bling the lower case” (8-26).
Assembling the forward gear
1. Assemble the forward gear. See “Assem-
bling the forward gear” (8-27).
Assembling the oil seal housing
1. Assemble the oil seal housing. See
“Assembling the oil seal housing” (8-27).
Installing the drive shaft
1. Install the forward gear assembly into the
lower case.
2. Install the washer
1
, spring
2
, thrust
bearing
3
, drive shaft
4
, thrust bearing
5
, and original pinion shims
6
.
3. Install the pinion and washer, and then
tighten the pinion nut temporarily.
TIP:
• When installing the pinion, lift up the drive
shaft slightly and align the splines on the
drive shaft with the splines on the pinion.
• To install the pinion nut, push down on the
drive shaft.
4. Install the oil seal housing, and then
tighten the pinion nut to the specified
torque. See steps 4 and 5 in “Installing
the drive shaft” (8-28).
Installing the propeller shaft housing
assembly
Do not reuse an O-ring, always replace it
with a new one.
1. Install new O-rings to the propeller shaft
housing.
2. Set the shift rod joint
1
and dog clutch
2
to the N position.
3
5
6
1
2
4