Replacement carburetor engineered for Yard Machines model 31AE644E129 snow blower. This directfit carburetor restores proper fuel and air mixture delivery so the engine starts and runs more reliably. Designed for straightforward installation and dependable operation in winter conditions. Key benefits Restores engine starting and running: replaces worn or clogged carburetors to reduce hard starting, stalling, and rough idling. Direct replacement fit: matched to the factory mounting points and throttle linkage for easier installation and minimal modification. Consistent fuel delivery: precision machining and calibrated passages help maintain steady idle and throttle response. Durable design for outdoor equipment: built to tolerate normal snow blower use and periodic maintenance. Saves time on repairs: a ready replacement option for homeowners and small engine technicians. Important attributes Function: mixes fuel and air and controls flow to the engine for proper combustion. Compatibility: specifically for Yard Machines model 31AE644E129 snow blower. Verify part number and model before ordering. Fit and size: manufactured to align with the original carburetor dimensions and mounting configuration for this model. Construction: designed with robust components suitable for small engine service and seasonal operation. Performance: intended to restore reliable idle, smoother throttle transitions, and improved starting behavior when installed and adjusted properly. Typical use scenarios Seasonal replacement before winter: swap the old carburetor during annual maintenance to avoid starting problems when snow removal is needed. after storagerelated issues: a carburetor that has become clogged or damaged after offseason storage to get the snow blower back into service. Workshop rebuild and refurbish: used by small engine technicians to used or refurbished snow blowers to dependable operation. Installation and maintenance notes Intended for direct installation onto model 31AE644E129 snow blower engines using standard tools. Basic adjustment of idle and mixture may be required for performance after installation. Recommended for users comfortable with small engine or for installation by a qualified small engine technician. Compatibility reminder Confirm compatibility with Yard Machines model 31AE644E129 before to ensure correct fit and function.