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Fulcrum Arm Height is the measurement between the carburetor gasket surface to the tip of the fulcrum arm.
â€¢ Factory Fulcrum Arm Height is typically set at .085".
â€¢ For most gas carburetors, we set the fulcrum at .075" using our 705 EC Tillotson Gas Fulcrum Arm Gauge
â€¢ For most methanol carburetors, we set the fulcrum at .065" using our 704 EC Tillotson Gas Fulcrum Arm Gauge
The 155A-23 OE Tillotson Inlet Control Lever/Fulcrum Arm is "uncaptured." Tillotson Uncaptured Fulcrum arm differs from captured fulcrum arm where the tab rests on top of the inlet needle rather than "capturing" the needle.