On an Ariens ST724, Model 932027, SN 020355, 7 HP Tecumseh engine, I want to replace the spark plug. it currently has a Champion RJ19LM in it but I don't think that is the correct one. I have an Owners Manual and a Parts manual for this machine but neither one lists any info on the spark plug. Hope you can help, i want to put the right spark plug in there.
Ariens 824 Sno Thro, Toro 18" Gas Trimmer, Craftsman 3.5 HP 9" Edger/Trimmer, Echo SRM230 Trimmer/Brush Cutter, Toro 21" Recycler II Mower, Craftsman 8.5 HP Chipper/Shredder, Craftsman 25cc GAs Blower/Vac, Husky Y1000 Air Compressor, Homelite EZ ChainSaw, Husky Chain Saw