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HCS-2810 / 3810
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.
Parts Required:
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.
Removal of cooling passage
blockages or cleaning of cooling fins
is considered "Normal Maintenance."
Any failure attributed to lack of
maintenance is not warranted.
1.
Remove spark plug lead.
2.
Remove muffler cover.
3.
Remove engine cover.
4.
Remove starter cover and clean dirt and dust from fins.
DO NOT use a metal scraper to remove dirt from the cylinder fins.
X7702248300
© 09/19 ECHO Incorporated
None if you are careful.
MAINTENANCE
0.65 mm (0.026 in.)
C A
29
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