Yamaha F200B Service Manual page 458

LOWR
c
d
TIP:
• Measure the backlash at 4 points: b, c,
d, and e, turning the drive shaft 180°
clockwise after each measurement.
• Write down the measurement data in the
shimming check sheet.
13. Determine the backlash average, and
then round down the average to the
1/100 place.
Example:
Measuring point b
Measuring point c
Measuring point d
Measuring point e
Average
Round-down average
14. Check that the forward gear backlash
average is within specification.
Forward gear backlash:
0.46–0.82 mm (0.0181–0.0323 in)
TIP:
Adjust the shim thicknesses if the forward
gear backlash is out of specification.
15. Remove the special service tools from
the propeller shaft.
8-95
Lower unit
b
e
(mm)
0.60
0.51
0.51
0.55
0.5425
0.54
16. Remove the propeller shaft housing
assembly. See step 1 in "Removing the
propeller shaft housing assembly" (8-16)
and step 2 in "Removing the propeller
shaft housing
(FL200B) See steps 1 and 2 in "Remov-
ing the propeller shaft housing assembly"
(8-22) and step 2 in "Removing the pro-
peller shaft housing assembly" (8-79).
(FL250G)
17. Install the washers C between the
reverse gear D and the propeller shaft
E.
E
C
D
Washer C: 90201-31M00
18. Install the propeller shaft housing assem-
bly (without the O-ring and dog clutch).
See step 2 in "Installing the propeller
shaft housing assembly" (8-84) and step
4 in "Installing the propeller shaft housing
assembly" (8-29). (FL200B) See step 2 in
"Installing the propeller shaft housing
assembly" (8-84) and step 4 in "Installing
the propeller shaft housing assembly" (8-
35). (FL250G)
19. Check that the
smoothly.
assembly" (8-73).
C
drive shaft turns