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CAC Gasoline Engine Maintenance And Servicing Manual 71 Carburetor engine faults ,causes and corrections
Cause
correction (1). Battery wires are loose or corroded
reconnect or replace the wires . (2). Battery is discharged or damaged
recharge or replace the battery . (3). Starter circuits is opened or loosed or not energized
energize or replace the harness (4). Starter solenoid valve or switch is damaged
replace starter solenoid valve or switch (5). Starter is damaged
replace starter (6). Flywheel gear ring or starter pinion is loosed or damaged replace flywheel gear ring or starter (7). No engine ground wire or ground wire is disconnected connect or replace the ground wire 2. engine runs but no spark exists during starting: Cause
correction (1). No fuel in fuel tank
fuel the tank (2). No fuel in the carburetor float chamber
keep trying to start engine
recharge or replace battery (4). Battery wire connector is loosed or corroded
reconnects or replace battery (5). Ignition parts is damp or damaged
replace ignition parts (6). Ignition part harness is opened ,loosed or not energized. Reconnect or replace harness Spark plug gap is not correct. Replace spark plug (8). Main mechanism is damaged(for example, camshaft)
check and service (9). Fuel pump is damaged
replace pump (10).Carburetor float chamber needle valve is binding or
oil strainer is blocked check, service and clean (11).Idle cut-off valve does not open
check circuit and solenoid 3. difficult to start for engine when temperature is low: Cause
correction (1). Battery discharged
recharge battery (2). Battery connector loosed or corroded
connect or replace the battery wires. (3). Spark plug is corroded , damaged or the Spark plug gap is not right. Replace spark plug (4). Other ignition system problem s
check and service (5). Low cylinder compression pressure
sent to service spot for check and service |