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© 2002 Edelbrock Corporation
Brochure No. 63-0073
Rev 02/02
TROUBLESHOOTING INSTRUCTIONS
HARD STARTING: When starting the engine for the first time, it maybe difficult to start until fuel reaches the carburetor.
FLOODING: Carburetor flooding immediately after installation is usually due to dirt or foreign matter lodged under the float needle. Gently tap on the air horn over the fuel inlet area with the
head of a screwdriver. If flooding does not stop, pinch the fuel line (if possible), start engine and run until it stalls. Then release the pinched line. If flooding still persists, drain the fuel and re-
start.
HESITATION: It is not unusual for hesitation upon acceleration to be caused by the carburetor's storage time. Allow a few hours of operation for the internal gaskets to become wet, and the
problem will usually cure itself.
ROUGH IDLE: Rough idle is often caused by an air leak in the vacuum lines, or by dirt in the air bleeds. Disconnect the vacuum lines one at a time and plug the hose end and the fitting at the
carburetor. If the idle roughness disappears, it indicates a leak.
IMPROPER VACUUM: If rough idle cannot be cured by any of the vacuum leak checks, connect a vacuum gauge to a suitable source of full manifold vacuum. If the gauge needle fluctuates, it
indicated internal engine problems.
THE FOLLOWING TROUBLESHOOTING CHART COVERS ONLY THE MOST COMMON PROBLEMS
Edelbrock Corporation
2700 California St.
Torrance, CA 90503
Tech Line: 1-800-416-8628
E-Mail: edelbrock@edelbrock.com
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