Automotive Carburetion Made Easy



	TOOLS and GAUGES



	TYPICAL GAUGE KIT FOR SERVICING ROCHESTER CARBURETORS

	Since service adjustments on all models of Rochester Carburetors have been kept to a minimum, the number of special tools and gauges required for field service adjustments	are comparatively few. The necessary tools and gauges are available, in compact kits, through United Motors Service Distributors everywhere.

	CAUTIONS

	1. The practice of indiscriminately install-ing lean main metering jets to improve economy is without basis. Lean jets are intended for high altitude use only and will not improve mileage at average or sea level altitudes. Excessively lean jets may result in burned engine valves. 2. Mileage complaints should always be verified with a gas-per-mile-gauge with the owner driving. Many factors, other than carburetion, affect mileage. 3. As mentioned before, CARBURETION SHOULD ALWAYS BE CHECKED LAST IN ENGINE TUNE-UP. 4. Do not remove throttle valves or shafts	from Rochester Carburetors. All idle drillings are made with relation to a proper fitting valve. Since removing and replacing the valve will change this rela-tionship, rough or erratic idling may be the result. 5. Be certain all carburetor adjustments are made in proper sequence according to factory specifications. 6. Always remember - DIRT IS A CAR-BURETOR'S WORST ENEMY. A good cleaning job will often result in a satis-fied customer. Always remove gum de-posits with a good gum solvent. In many instances it may be advisable to install a fuel filter to minimize dirt deposits.

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