Section 10 Storage; Section 11 Troubleshooting Guide - Cobra BC270KB Owner's Manual

10. Storage
Lubricator
11. Troubleshooting Guide
Symptom
Engine won't Insufficient
start or output compression
is low
No fuel to
combustion
chamber
Spark plug
fouled by fuel
No spark or
weak spark
Low output Engine
overheats
For an authorised repairer see the Cobra dealer locator – cobragarden.co.uk
Engine to be stored over 30 days should be
completely drained of fuel to prevent gum deposits
Plug hole
forming on essential carburettor parts fuel filter and
fuel tank.
-Clean the engine and the brushcutter.
-Remove all the fuel from the tank and run the
engine at idling to use up the fuel in the carburettor.
-Remove the spark plug, pour in 0.5 ml of new 2-
stroke engine oil through the plug hole, pull the recoil
starter grip several times, and reinstall the spark
plug.
-Slowly pull the recoil starter grip until resistance is
felt.
-Store the engine in a clean and dry place.
Probable cause
Faulty piston, cylinder and piston ring
Loose spark plug
Loose cylinder bolts
No fuel in fuel tank
Blocked fuel filter or tube
Blocked air vent in tank cap
Faulty carburettor
Over-rich fuel/air mixture
Clogged air cleaner
Faulty carburettor
Incorrect grade/type of fuel
Water in fuel
Faulty spark plug
Faulty ignition coil
Engine switch left in "O"(STOP)
position
Clogged air cleaner
Recoil starter or cooling air path
clogged with dirt
Carbon built--up in combustion
chamber
Poor ventilation around engine
Remedy
See an authorised repairer
Tighten properly.
Fill fuel tank.
Clean.
See an authorised repairer
Turn lift up lever to "Starting"
position. Rotate engine with
spark plug removed to
discharge excess fuel.
Clean the spark plug.
Clean
See an authorised repairer
Change petrol.
Replace spark plug.
See an authorised repairer
Turn the engine switch to
"START" position.
Clean
See an authorised repairer
Select a better location.
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