97
(3). Fuel pump damaged. Or low fuel outlet pressure
Replace fuel pump
(4). Carburetor acceleration pump clogged or
Clean or replace accelerator pump
diaphragm damaged
(5). Part-load fuel way clogged
Clean and service
(6). Spark plug corroded, damaged or Spark plug gap abnormal
Replace spark plug
11.Engine speed is not as specified
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
12.
Engine power is not enough.
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
(8). Spark plug corroded, damaged or Spark plug gap abnormal Replace spark plug
(9). Intake manifold or connecting hose vacuum leaking Check or service
13.
Carburetor backfire.
Cause
Correction
(1). Engine ignited too late
Check or adjust distributor
(2). Incorrect Timing belt assembling or
Adjust ‘teeth’belt tension and tension pulley inadequate
belt tension
Содержание JNSZ1600DL
Страница 22: ...21 ENGINE CONFIGURATION VIEW AND SECTIONAL VIEW Fig 22 Fig 23...
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