Honda GX240RT2 Service And Repair Manual page 71

TROUBLESHOOTING
ENGINE SPEED DOES NOT INCREASE OR
STABILIZE
Check the air cleaner element
Clean
Check the valve clearance
Normal
Remove the spark plug and check the
electrodes for carbon and proper gap
(page 3-9) .
Normal
Check the main jet for blockage
Clear
Check for secondary air leaks. Is it normal?.
Yes
Check the cylinder compression
(page 12-5)
.
Normal
Go to page 4-5
gx240ut2_gx270ut2_gx340ut2_gx390ut2
(page 3-6) .
(page 3-12) .
(page 6-13)
.
Clogged
Clean the air cleaner element
Abnormal
Adjust the valve clearance
Abnormal
Inspect the spark plug and adjust the spark
plug gap
(page 3-10)
Clogged
Disassemble and clean the carburetor
(page 6-13)
No
Check around the air intake joint and
carburetor; replace the insulator and/or
gasket if necessary.
High cylinder
compression
Check for carbon deposits in the combustion
chamber.
Low cylinder
compression
Check the valve clearance
Check that the cylinder head is correctly
tightened
Check for defective cylinder head gasket,
valves, or valve seats
Check for worn piston, piston rings, or
cylinder
(page 3-6)
(page 3-12)
(page 3-9)
. Replace if necessary
.
.
(page 3-12)
(page 12-3) .
(page 12-4)
.
(page 13-13)
.
.
.
.