Pre-Operation Check List; Torque Values For Common Components - Yamaha JT1 Series Service Manual

APPENDIX IV
PRE-OPERATION CHECK CHART
ITEM
ROUTINE
PAGE
lRAKES
Check operation/adjustment
:LUTCH
Check operation/lever adjustment
~UTOLUBE TANK
Check oil level/top-off as required
rRANSMISSION
Top-off as required
)RIVE CHAIN
Check a I ignment/adjustment/lubrication
IATTERY (JT2)
Check electolyte level weekly/top-off monthly
iPARK PLUG(S)
After break-in - check color/cond'n weekly/1,000 mi.
\UTOLUBE PUMP
Check for proper cable operation
\JR FILTER
Foam type - must be clean and damp w/oil always
/HEELS & TIRES
Check pressure/runout/spoke tightness/axle nuts
'ITTINGS/FASTE NERS
Check all - tighten as necessary
.IGHTS/SIGNALS (JTl L/ JT2)
Check headlight/tail - stop lights
!-operation checks should be
made each time the machine
is
used.
Such an
inspection can be
thoroughly
accomplished
a very short time; and the
aaded
safety it
assures
is
more than
worth
thP-
time
involved.
orque Specifications
The I ist below covers those stud/bolt sizes
with standard I.S.O. pitch threads. Torque
specifications for components with thread
pitches other than standard are given within
the applicable chapter.
Torque specifications call for dry, clean
threads. Components such as the cylinder or
cylinder head should be at room temperature
prior to torquing. A cylinder head or any
other item with several fasteners should be
torqued down in a cross-hatch pattern in
successive stages until torque specification is
reached. The method is similar to installing an
automobile wheel and will avoid warping the
component.
0
A B
(NUT)
(BOLT)
10mm
6mm
13mm 8mm
14mm 8mm
17mm 10mm
19mm 12mm
22mm 14mm
26mm 17mm
27mm 18mm
30mm 20mm
SPARK PLUG
- 87 -
TORQUE SPECIFICATION
Kg-m Ft-lbs In-lbs
1.0
7,2
85
2.0 15 175
2.0 15 175
3.5~4.0 25~29 300~350
4.0~4.5 29~33
350~400
4.5~5.0 33~36 400~440
5.8~7.0 42~50 500~600
5.8~7.0
42~50 500~600
7.0~8.3
50~60 600~700
2.7~2.9
19~21 230~250