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The BOYESEN APC-3QS Quickstart Accelerator Pump Cover is designed to enhance the performance of Keihin FCR carburetors on MX, off-road, and ATV models. This high-volume vertical check valve ensures precise and consistent fuel metering, contributing to improved throttle response and overall engine efficiency. The tunable leak jet maximizes the amount of fuel delivered and extends the duration of the fuel spray, optimizing performance across various riding conditions. The integrated Hot Start Assist feature simplifies hot starts on 4-stroke engines, eliminating common starting issues and saving time during critical moments. Crafted from investment cast material and finished with high precision, this component guarantees durability and reliability under demanding conditions. Its simple bolt-on installation allows for quick upgrades without additional modifications. With 25% increased fuel capacity, it provides extended operation and enhanced low-end performance, making it an ideal upgrade for those seeking improved throttle response and fuel delivery in their racing or recreational vehicles.
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