Disassembling The Final Drive Pinion Gear Assembly; Positioning The Final Drive Pinion Gear And Ring Gear; Adjusting The Final Drive Pinion Gear Backlash - Yamaha YFM7FGPW Service Manual

REAR CONSTANT VELOCITY JOINTS AND FINAL
b
DISASSEMBLING THE FINAL DRIVE
PINION GEAR ASSEMBLY
1
1. Loosen:
• rear drive shaft coupling gear (final gear
side) nut 1
NOTE:
Secure the final drive pinion gear teeth in the
vise with a clean rag.
EBS00184
POSITIONING THE FINAL DRIVE PINION
GEAR AND RING GEAR
When the final drive pinion gear, wheel gear,
final gear case and/or final driven pinion gear
are replaced, be sure to adjust the positions of
the final drive pinion gear, wheel gear and final
driven pinion gear using the shim(s).
EBS00185
ADJUSTING THE FINAL DRIVE PINION
GEAR BACKLASH
1. Select:
1
• final drive pinion gear shim(s) 1
"A"
M MMM
a. To find the final drive pinion gear shim thick-
ness "A", use the following formula.
c
Final drive pinion gear shim thickness
"A" = a + (c – b) – d
d
b
a = 55 mm (2.2 in).
a
b = a numeral (usually a decimal number) on
c = a numeral (usually a decimal number) on
d = a numeral (usually a decimal number) on
Example:
1) a = 55
2) If "–02" is stamped on the final drive pinion
gear,
b = 22.2 – 0.02
= 22.18
7 - 25
DRIV
DRIVE GEAR
M MMM M M MMM M M MMM M
the final drive pinion gear either added to
or subtracted from "22.2".
the final drive pinion gear bearing housing
either added to or subtracted from "67.8".
the final gear case either added to or sub-
tracted from "100".
M MMM M M MMM M MMM