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  5. 706 EC Walbro Gas Fulcrum Arm Gauge
706 EC Walbro Gas Fulcrum Arm Gauge
706 EC Walbro Gas Fulcrum Arm Gauge
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706 EC Walbro Gas Fulcrum Arm Gauge

Part Number: 706
Your Price: $10.00
Availability: In Stock.

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Description

The 706 Fulcrum arm Gauge is a tool to set the fulcrum arm height. 

This is a tool for all racers and carburetor builders alike to have. Our gauge makes it easy to check and set your carburetor’s fulcrum arm height. The height dictates how much leverage the main metering diaphragm has on the fuel inlet needle. This controls how much fuel can flow pass the needle to the high and low side circuits. It can also slightly change the pop-off pressure by changing the install height of the inlet tension spring. Your Fulcrum arm height should be checked during every rebuild and in some cases every race day.

.085” factory height and .075 for our EC Blueprinted Gas Carburetors

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