Engine Mechanical: 1D-40
Valve Seat Repair
B831G21406027
The valve seats (1) for both the intake and exhaust
valves are machined to three different angles. The seat
contact surface is cut at 45
°
.
CAUTION
!
• The valve seat contact area must be
inspected after each cut.
• Do not use lapping compound after the
final cut is made. The finished valve seat
should have a velvety smooth finish but
not a highly polished or shiny finish. This
will provide a soft surface for the final
seating of the valve which will occur
during the first few seconds of engine
operation.
NOTE
After servicing the valve seats, be sure to
check the valve clearance after the cylinder
head has been reinstalled. Refer to “Valve
Clearance Inspection and Adjustment in
Section 0B (Page 0B-4)”.
Cam Drive Idle Gear / Sprocket Thrust
Clearance Inspection and Adjustment
B831G21406028
Inspection
• Install the cam drive idle gear/sprocket (1) and tighten
the shaft (2) to the specified torque.
Tightening torque
Cam drive idle gear/sprocket shaft (a): 41 N·m (
4.1 kgf-m, 29.5 lb-ft)
• Measure the thrust clearance between the idle gear
and shim by using a thickness gauge.
Special tool
(A): 09900–20803 (Thickness gauge)
Cam drive idle gear/sprocket thrust clearance
Standard: 0.15 – 0.27 mm (0.006 – 0.011 in)
Intake
Exhaust
Seat angle
30
°
/45
°
/60
°
15
°
/45
°
/60
°
Seat width
0.9 – 1.1 mm
(0.035 – 0.043 in)
←
Valve
diameter
36 mm
(1.42 in)
33 mm
(1.30 in)
Valve guide
I.D.
5.500 – 5.512 mm
(0.2165 – 0.2170 in)
←
1
1
60°
30°
45°
15°
45°
60°
IN
EX
I831G1140170-02
(a)
1
2
I831G1140171-01
(A)
I831G1140172-01
Содержание 2009 LT-A750XK9
Страница 2: ......
Страница 4: ......
Страница 5: ...SUPPLEMENTS L LT A750XK9 09 MODEL 10 LT A750XPK9 09 MODEL 11 ...
Страница 29: ...0A 15 General Information 99565 01010 013 CD ROM Ver 13 ...
Страница 57: ...0B 28 Maintenance and Lubrication 09915 40610 Oil filter wrench Page 0B 12 Page 0B 12 ...
Страница 68: ...0C 11 Service Data ...
Страница 310: ...1K 5 Exhaust System ...
Страница 482: ...4D 6 Parking Brake ...
Страница 528: ...6B 13 Steering Handlebar ...
Страница 555: ...Exterior Parts 9D 1 Body and Accessories Exterior Parts Repair Instructions Exterior Parts Construction B831G29406001 ...
Страница 581: ......
Страница 631: ...4A 6 Brake Control System and Diagnosis ...