96
adjustment screw
8.
Engine Stalls during idling:
Cause
Correction
(1). Low idle speed
Adjust idle speed
(2). Fuel outlet port or transition port for Idle speed blocked
Check and clean
(3). Choke not open or out of work
Check choke system
(4). Carburetor float position not proper
Check carburetor float or needle valve
(5). Spark plug corroded, damaged or Spark plug gap not right.
Replace spark plug
(6). High tension wire damaged
Replace high tension wire
(7). Ignition timing not correct
Adjust ignition timing
(8). Hydraulic valve lifter damaged
Replace Hydraulic valve lifting rod
(9). Low or unstable cylinder compression pressure
Check and service
(10). PCV hose loose, leaking, or damaged
Connect or replace
9.
Engine Stalls within operation speed range
Cause
Correction
(1 ). Fuel filter blocked
Replace fuel filter
( 2). Fuel pump working incorrectly or low output pressure
Replace fuel pump
(3 ). Tank ventilation hole clogged or fuel hose clogged
Dredge the hose
(4 ). Carburetor float needle valve binding
Service or replace
(5 ). Intake manifold or connecting hose vacuum leakage
Check, service or replace
( 6). Spark plug corroded, damaged or Spark plug gap abnormal
Replace spark plug
(7). High pressure wire damaged
Replace
(8). Ignition coil damaged
Replace
(9). Low or abnormal cylinder compression pressure
Measure pressure and service
10.
Engine accelerates hesitate
Cause
Correction
(1). Intake manifold or connecting hose vacuum leaking
Service and check
(2). Fuel filter clogged
Replace fuel filter
