Honda CB HORNET 160R 2015 Shop Manual page 106

CYLINDER HEAD/VALVES
TORQUE VALUES
ITEM
Cylinder head cover bolt
Rocker arm shaft bolt
Cam sprocket bolt
Cylinder stud bolt nuts
Inlet pipe bolt
Cam chain tensioner lifter screw
Cylinder stud bolt
TROUBLESHOOTING
• Engine top-end problems usually affect engine performance. These problems can be diagnosed by a compression test, or by tracing
top-end noise with a sounding rod or stethoscope.
• If the performance is poor at low speeds, check for white smoke in the crankcase breather hose. If the hose is smoky, check for a
seized piston ring (page 3-7).
Compression too low, hard starting or poor performance at low speed
• Valves:
– Incorrect valve adjustment
– Burned or bent valve
– Incorrect valve timing
– Weak valve spring
– Uneven valve seating
– Valve stuck open
• Cylinder head:
– Leaking or damaged cylinder head gasket
– Warped or cracked cylinder head
– Loose spark plug
• Cylinder/piston problem
Compression too high
• Excessive carbon buildup on piston head or combustion chamber
Excessive smoke
• Worn valve stem or valve guide
• Damaged stem seal
• Cylinder/piston problem
Excessive noise
• Incorrect valve adjustment
• Sticking valve or broken valve spring
• Excessive worn valve seat
• Worn or damaged camshaft
• Worn rocker arm and/or shaft
• Worn rocker arm roller and valve stem end
• Worn cam sprocket teeth
• Worn cam chain
• Worn or damaged cam chain tensioner
• Cylinder/piston problem
Rough idle
• Low cylinder compression
7-2
PART NO. QTY
96001 – 06035 – 00 4
90002 – KRM – 840 2
90083 – KRM – 840 2
90201 – KRE – G00 4
95701 – 06025 – 00 2
90005 – K15 – 900 1
90031 – KRE – G00 2
90032 – KRE – G00 2
THREAD TORQUE
DIA. (mm) N·m (kgf·m, lbf·ft)
6 10 (1.0, 7.3)
5 5 (0.5, 3.7)
5 9 (0.9, 6.6)
9 30 (3.0, 22)
6
12 (1.2, 9)
6
4 (0.4, 3.0)
9
9 (0.9, 6.6)
9
9 (0.9, 6.6)
REMARKS PAGE NO.
Page 7–6
Page 7–12
Page 7–9
NOTE 1 Page 7–19
Page 7–21
Page 7–22
Page 7–19
Page 7–19