MAINTENANCE
DH235
28
X7702241803
© 12/19 ECHO Incorporated
Note: Federal EPA regulations require all model year 2012 and later
gasoline powered engines produced for sale in the United
States to be equipped with a special low permeation fuel
supply hose between the carburetor and fuel tank. When
servicing model year 2012 and later equipment, only fuel
supply hoses certified by EPA can be used to replace the
original equipment supply hose. Fines up to $37,500 may be
enforced for using an un-certified replacement part.
Spark Plug
Level 2.
Use only NGK BPMR-8Y spark plug otherwise severe engine
damage may occur.
1.
Remove spark plug and check
for fouling, worn and rounded
center electrode.
2.
Clean the plug or replace with
a new one. DO NOT sand blast
to clean. Remaining sand will
damage engine.
3.
Adjust spark plug gap by
bending outer electrode.
4.
Tighten spark plug to 150-170 kgf • cm (130-150 in • lbf).
Cooling System
Level 2.
To maintain proper engine operating temperatures, cooling air must
pass freely through the cylinder fin area. This flow of air carries
combustion heat away from the engine.
Overheating and engine seizure can occur when:
• Air intakes are blocked, preventing cooling air from reaching the cylinder.
• Dust and grass build up on the outside of the cylinder. This build up
insulates the engine and prevents the heat from leaving.
Parts Required:
Spark Plug
0.65 mm (0.026 in.)
