Honda EU10iT1, Manual

Page: 45 / 138

4-4
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TROUBLESHOOTING
ENGINE SPEED DOES NOT INCREASE OR STABILIZE
Check the air cleaner (page 3-4). Clean the air cleaner or replace if necessary
(page 3-5).
Not
contaminated
Contaminated
Check the valve clearance (page 3-6). Adjust the valve clearance (page 3-6).
Normal
Abnormal
Check for blockage in the main jet of the
carburetor (page 6-6). Disassemble and clean; replace if necessary
(page 6-6).
Normal
Abnormal
Inspect the carburetor for loose installation and
improper seal.
If the carburetor is loose, tighten the nut securely.
Replace the O-ring and/or gasket.
Normal
Abnormal
Perform the cylinder compression check
(page 14-6). Check to see whether excessive carbon has
accumulated in the combustion chamber
(page 3-7).
Normal
High
compression
Low
compression
Check that the valve clearance is correct
(page 3-6).
Check that the cylinder head is correctly
tightened.
Check for worn or damaged, valves, or valve
seats (page 15-6).
Check for worn piston rings, piston, or cylinder
(page 15-8).
Perform "THROTTLE CONTROL SYSTEM
TROUBLESHOOTING" (page 7-2).