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CARBURETOR MODEL 2140
TROUBLE SHOOTING CHART
TROUBLE
POSSIBLE CAUSE
SYSTEM
Poor Fuel Economy
High Speed or Full Power Complaints.
Damaged or obstructed main well tubes. |
Main Metering System |
Damaged or obstructed air bleeds. |
|
Damaged, distorted, or oversized main jets. |
|
Damaged or obstructed idle tubes. |
Idle System |
Damaged or obstructed idle air bleeds. |
|
Grooved or damaged idle adjusting needles. |
|
Binding economizer diaphragm stem. |
Power Enrichment Sys |
Power valve broken or stuck open. |
tem. |
Split, broken, or distorted power valve gasket. |
|
Obstructed manifold vacuum passage. |
|
Incorrectly set accelerating pump link. |
Accelerating Pump Sys |
Damaged, corroded, or obstructed pump dis |
tem. |
charge needle or seat. |
|
Incorrectly set or damaged choke. |
Automatic Choke System |
Damaged thermostatic spring. |
|
Obstructed heat tube passage. |
|
Damagedor distorted secondary jetgasket. |
Secondary Throttle Sys |
Loose secondary jet head nut. |
tem. |
High fuel level in float chamber because of |
Fuel System |
improperly set or damaged floats, damaged |
|
or obstructed inlet needle valve, or excessive |
|
fuel pump pressure. |
|
Incorrectly set, damaged, or faulty dashpot. |
Dashpot. |
Damaged or obstructed main well tubes. |
Main Metering System |
Damaged or obstructed air bleeds. |
|
Damaged, distorted, or undersized main jets. |
|
Clogged or damaged power valve. |
Power Enrichment Sys |
tem | |
Damaged throttle operating diaphragm. |
Secondary Throttle Sys |
Obstructed primary bore vacuum restriction. |
tem |
Damaged or obstructed secondary jets or |
|
venturi tubes. |
|
Low fuel level in float chamber because of |
Fuel System |
improperly set or damaged floats, damaged |
|
or obstructed inlet needle valve, or insuffi |
|
cient fuel pump pressure. |
-16
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