WCM CTX8010 Operations & Parts Manual page 50

(5) Inspect and repair the engine. Only when the engine works well can the start-up fail never or seldom happen.
3. Check if it is hard to start the engine
Symptom:
(1) Starter runs at correct rpm and drives the engine; however, it is hard to start the engine.
(2) It is hard to start the engine when it is cold.
(3) It is hard to start the engine when it is hot.
Possible causes:
(1) Fuel filter is blocked;
(2) Fuel pump fault;
(3) Wrong injection timing;
(4) Low temperature of oil and intake air;
(5) Intake air filter is blocked.
(6) Leak of fuel tube;
(7) Starter fault;
(8) Improper start operation;
(9) Wrong fuel grade;
(10) Engine fault;
How to solve:
(1) Inspect and change the fuel filter;
(2) Inspect and change the air filter element;
(3) Inspect and adjust the fuel pump;
(4) Inspect the fuel tube and oil channel to ensure unblocked oil supply;
(5) Inspect the starter and start control device for reliable operation.
(6) Start the engine in correct ways.
(7) Add fuel of correct grade and discharge the water in fuel in the low part of fuel tank if necessary;
(8) Repair the engine.
4. Check if the starter fails to start the engine
Symptoms:
(1) Turn the ignition switch to ON, the starter does not work.
(2) The driving gears of starter do not engage.
(3) The driving gears of starter fail to disengage.
(4) Low engine rpm and uneven engine rpm;
Possible causes:
(1) The battery is not fully charged.
(2) Terminals of battery are loose.
(3) Battery earth wire is loose.
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