Honda CB HORNET 160R 2015 Shop Manual page 330

8. Spark Plug Inspection
Remove and inspect the spark plug.
Are the spark plug in good condition?
– • Plugs not serviced frequently enough
NO
• Incorrect spark plug used
• Incorrect spark plug gap
– GO TO STEP 9.
YES
9. Cylinder compression Inspection
Test the cylinder compression.
Is the compression low?
– • Valve clearance too small
YES
• Valve stuck open
• Worn cylinder and piston rings
• Leaking/damaged cylinder head gasket
• Seized valve
• Improper valve timing
– GO TO STEP 10.
NO
10. Carburetor Inspection
Check carburetor for clogging.
Is the carburetor for clogged?
– Carburetor not serviced frequently enough.
YES
– GO TO STEP 11.
NO
11. Lubrication Inspection
Remove the cylinder head cover, and inspect lubrication.
Is the valve train lubricated properly?
– • Clogged oil passage
NO
• Clogged oil strainer
• Broken gear oil pump
• Faulty oil pump
TROUBLESHOOTING
20-3