Aligning The Middle Gear - Yamaha FJR1300R Service Manual

MIDDLE GEAR
EAS00452

ALIGNING THE MIDDLE GEAR

NOTE:
@
Aligning the middle gear is necessary when
any of the following parts are replaced:
• Crankcase
• Middle drive shaft
• Middle driven shaft bearing housing
1. Select:
• middle drive shaft shim(s) 1
• middle driven shaft shim(s) 2
NOTE:
@
Select the middle driven shaft shim(s) 2 by
calculating the middle drive shaft shim thick-
ness and then measuring the middle gear
backlash.
M MMM M MMM M M MMM M
a. Position the middle gear with the appropri-
ate shim(s) 1 and 2 that has had its
respective thickness calculated from infor-
mation marked on the crankcase and the
end of the middle drive gear.
1 Middle drive gear shim thickness "A"
2 Middle drive gear shim thickness "B"
b. To find middle drive shaft shim thickness
"A", use the following formula.
Middle drive shaft shim thickness
"A" = c – a – b
a = "65.00"
b = bearing thickness constant
c = a numeral on the upper crankcase near
the main bearing selection numbers and which
is added to the nominal size "84"
Example:
a is 65.00
b is 18.94
If the upper crankcase is marked "45"
c is 84.45 (i.e., 84.00 + 0.45 = 84.45)
"A" = 84.45 – 65.00 – 18.94 = 0.51
Round off to the hundredths digit and select
the appropriate shim(s).
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ENG
M MMM M M MMM M M MMM M MMM