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12.2 Failure diagnosis
Starting disorder hard starting Flameout after starting unstable idling speed
No fuel in the carburetor Carburetor blockage
Gas filter blockage too thick or too thin gas mixture
Gas pipe blockage secondary gas suction in the inspiration system
Needle valve ankylosis idle speed maladjustment
Oil level maladjustment oil volume maladjustment
Blockage in the idling system or the electric enrichment valve
Excessive fuel in the engine too thin gas mixture
Outflow due to excessive oil oil jet blockage
Secondary gas suction in the inspiration system needle valve blockage
Fuel deteriorate low oil level
Enrichment valve disorder fuel system blockage
Blockage in the idling system or the choke system secondary gas suction in the inspiration system
Over thick gas mixture flashover interruption on acceleration
Enrichment valve disorder too thin gas mixture
Needle valve disorder
Over high oil level
Carburetor outflow
Gas channel blockage
Dirty gas cleaner
12.3 Removal of carburetor
12.3.1 Removal
Turn fuel switch to "OFF".
Remove feeding rubber tube. Loose throttle cable.
Remove end plug of oil drain tube and put fuel of float
component room into another box.
Remove plug of electronic enrichment valve.
Loose carburetor plug with motor and the screw of gas filter
plug, and remove carburetor from the two interfaces.
进油胶管 oil feeding rubber tube
油门拉线 throttle cable
电加浓阀 electronic enrichment valve
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