TUNE KIT B&S 3.5-4.5

Ignition/ Filter; Use With Briggs & Stratton 3.5 to 4.5 HP Q45 ®/ Classic ™/ Sprint ™ and Quattro ™ Engines; With Champion 868 Spark Plug/ Air Filter/ 20 Ounce 30W Oil and 2.5 Ounce Fuel Stabilizer; Also Use New Number BS12