Carburetor Repair Kit / Tecumseh 31840Pack Size:1Tecumseh 31840Laser 98281, NHC 31840, Oregon 49-840, Stens 520-338Tecumseh H25-H70, HH40-HH70, HS40, HS50, HSK35, HSK60, HXL35, LAV35, LAV40, V50-V70, VH70 and TVXL105Ethanol: Not compatible with greater than 10% ethanol fuel