Savior C1U-W18 Carburetor + Spline Screwdriver for Poulan FL20 FL23 FL26 FX26 FX26S MX550 TE475Y XT260 XT700 FL20C MX557 SST25C FX26SC Trimmer 530071752 530071822 545081808 530071750 530035560 High quality carburetor + splined adjustment tool Carburetor refer to Part No.: 530071752, 530071822, 545081808, 530071750 Spline shape tool replace Part No.: 530035560 The splined tool is a "must" to keep these 50 hr rated, small, 2 cycle, machines running. Notice: the splined tool is designed to adjust ZAMA carburetor