Problem 12 - Engine "Hunts" / Erratic Idle; Problem 13 - Engine Will Not Crank; Problem 14 - Recoil Cord Will Not Pull (If So Equipped) - DeWalt DXGN4500 Manual

Problem 12 – Engine "Hunts" / Erratic Idle
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TEST 23 –
CHOKE TEST SURGING
NO
SURGING
TEST 22 –
CHECK
CARBURETION
Problem 13 – Engine Will Not Crank
TEST 15 – CHECK
BATTERY
& CABLES
BAD
RECHARGE OR REPLACE BATTERY
– CLEAN, REPAIR OR REPLACE
BAD CABLE(S)
Problem 14 – Recoil Cord Will Not Pull (If So Equipped)
TEST 33 – TEST
RECOIL
FUNCTION
BAD
REPLACE
Diagnostic Repair Manual
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TEST 24 – CHECK
STILL
VALVE
ADJUSTMENT
BAD
ADJUST / RE-TEST
TEST 29 – CHECK
REPAIR OR
REPLACE
TEST 16 – CHECK
VOLTAGE AT
GOOD
STARTER
CONTACTOR
12 VDC
MEASURED
TEST 19 – CHECK
STARTER MOTOR
GOOD
TEST 34 –
GOOD TEST ENGINE
FUNCTION
BAD
VISUALLY INSPECT EXTERNAL
COMPONENTS FOR A FAILURE
THAT WOULD CAUSE THE
ENGINE TO BE SIEZED
GOOD
TEST 21 – CHECK
GOOD
SPARK PLUG
AND ADJUST
GOVERNOR
BAD
REPLACE IGNITION COIL
NO VOLTAGE
MEASURED
REPLACE STARTER
BAD
MOTOR IF DEFECTIVE
CHECK FOR MECHANICAL BINDING
OF THE ENGINE OR ROTOR
GOOD
BAD
AN INTERNAL ENGINE FAILURE HAS OCCURED.
POSSIBLE FAILURE COULD BE THE RESULT OF
NOTHING
A COMPRESSION RELEASE FAILURE. CONSULT
FOUND
ENGINE SERVICE MANUAL P/N 0C1103A FOR
FURTHER ENGINE SERVICE INFORMATION.
Section 3 Engine Diagnostic Tests
TEST 20 –
CHECK
IGNITION
SPARK
GOOD BAD - ENGINE
MISS APPARENT
BAD
REPLACE
BAD
IGNITION COIL
TEST 17 – CHECK
START-RUN-STO
P SWITCH
REPLACE
VISUALLY INSPECT FOR OBSTRUCTIONS
THAT WOULD CAUSE BINDING OF THE
RECOIL ONCE INSTALLED
FIX BAD COMPONENT
TEST 26 –
CHECK
BAD
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