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The WALBRO 500-13-1 is a metering gauge tool designed for use in carburetor service and adjustment procedures on small engines. It provides technicians with a precise reference for setting metering lever height during carburetor rebuilds and overhauls. This type of gauge tool is a standard instrument in small engine repair, helping to ensure the metering lever sits at the correct position before reassembly. Lawn and garden equipment service technicians and outdoor power equipment mechanics typically use this tool as part of a complete carburetor rebuild process.
The 500-13-1 is suited for service work on small two-stroke and four-stroke engines commonly found in handheld and walk-behind lawn and garden equipment. It is used during carburetor disassembly and reassembly when the metering diaphragm, needle, and lever components are inspected or replaced. Proper metering lever height is a critical step in carburetor calibration, and this gauge tool supports consistent, repeatable results across service calls.
Designed as an OEM Walbro service tool for use with Walbro carburetor rebuild and adjustment procedures on small engine lawn and garden equipment.
This gauge tool is used by small engine technicians during carburetor service. Before beginning any carburetor work, shut off the fuel supply and allow the engine to cool completely. Use the gauge to verify metering lever height as specified in the applicable Walbro carburetor service documentation before reassembling diaphragm and cover components. Follow all applicable safety procedures when handling fuel system components.
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