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CAC Gasoline Engine Maintenance And Servicing Manual 74 10. Engine accelerates hesitately Cause
Correction (1). Intake manifold or connecting hose vacuum leaking service and check (2). Fuel filter clogged
replace fuel filter (3). Fuel pump damaged. Or low fuel outlet pressure replace fuel pump (4). Carburetor acceleration pump clogged or
clean or replace accelerator pump diaphragm diaphragm damaged (5). Part-load fuel way clogged
clean and service (6). Spark plug corroded, damaged or Spark plug gap abnormal replace spark plug Cause
Correction (1). Intake manifold or connecting hose vacuum leaking service and check (2). Fuel filter blocked
replace fuel filter (3). Fuel pump damaged. Or low fuel outlet pressure
replace fuel pump (4). Fuel Tank ventilation pipe blocked or fuel hose blocked dredge the hose (5). Throttle valve not widely open
adjust (6). Choke not widely open or auto-choke damaged
adjust or service Cause
Correction (1). Incorrect Ignition timing
check or adjust distributor (2). Incorrect Timing belt assembly or
adjust ‘teeth’ belt tension or tension incorrect belt tension
pulley. (3). Carburetor float chamber level too low or
check and clean carburetor float needle
fuel intake strainer blocked
valve and strainer (4). Throttle valve not widely open
adjust (5). Choke not widely open or auto-choke damaged adjust or service (6). Fuel filter blocked
replace (7). Abnormal or too low cylinder compression pressure check and service Spark plug gap abnormal replace spark plug (9). Intake manifold or connecting hose vacuum leaking check or service |