MASTERPAC PCR3820 Series, Руководство по эксплуатации

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19
MAINTENANCE
3.7.2 Engine Troubleshooting
SYMPTOM POSSIBLE CAUSE SOLUTION
Spark plug bridging.
Check gap, insulation or replace
spark plug.
Carbon deposit on spark
plug.
Clean or replace spark plug.
Short circuit due to deficient.
Check spark plug insulation,
replace if worn.
Difficult to start, "fuel
is available, but no
SPARK at spark
plug".
Improper spark plug gap. Set to proper gap.
ON/OFF switch is shorted.
Check switch wiring, replace
switch.
Ignition coil defective. Replace ignition coil.
Improper spark gap, points
dirty.
Set correct spark gap and clean
points.
Condenser insulation worn or
short circuiting.
Replace condenser.
Difficult to start, "fuel
is available, and
SPARK is present at
spark plug.
Spark plug wire broken or
short circuiting.
Replace defective spark plug
wiring
Wrong fuel type.
Flush fuel system, and replace
with correct type of fuel.
Water or dust in fuel system? Flush fuel system.
Difficult to start, "fuel
is available, spark is
present and
compression is
normal".
Air cleaner dirty. Clean or replace air cleaner.
Suction/exhaust valve stuck .
or protruded?
Re-seat valves.
Piston ring and/or cylinder
worn.
Replace piston rings and or
piston.
Cylinder head and/or spark
plug not tightened properly.
Torque cylinder head bolts and
spark plug.
Difficult to start, "fuel
is available, spark is
present and
compression is low.
Head gasket and/or spark
plug gasket damaged.
Replace head and spark plug
gaskets.