Selecting Middle Drive And Driven Gear Shims - Yamaha YFM7FGPW Service Manual

"A"
1
a
MIDDLE GEAR
EBS00370
SELECTING MIDDLE DRIVE AND DRIVEN
GEAR SHIMS
When the drive and driven gear, bearing hous-
ing assembly and/or crankcase replaced, be
sure to adjust the gear shim 1, 2.
1. Select:
• middle drive gear shim 1
• middle driven gear shim 2
M MMM
a. Position middle drive and driven gear by
using shims 1 and 2 with their respective
thickness
marked on crankcase, bearing housing and
drive gear end.
1 Shim thickness "A"
2 Shim thickness "B"
b. To find shim thickness "A" use following for-
mula:
Middle drive pinion gear shim thickness
"A" = e + d – b – c – a
2
Where:
a = a numeral (usually a decimal number) on
the bearing housing is either added to or
"B" subtracted from "0.6"
b = 17.0
c = 55.0
d = a numeral (usually a decimal number) on
the right crankcase specifies a thickness
of "65.0"
d
4 - 96
ENG
M MMM M M MMM M M MMM M M MMM
calculated from
M M MMM M MMM
information