Boite de jet BIHR for carburetor KEIHIN PWK

BIHR offers these sets of carburetor jets KEIHIN, PWK, and KEA. These jets are of very high quality and precise compared to other sub-brand models. These jet sets are available in sizes 100 to 122, 125 to 148, and 150 to 172. This means you’ll have all the jets you need to tune your carburetor. For your information, how can you tell if your carburetor is properly adjusted—at least for the main jet? It’s very simple: just do a test run and check the color of your spark plug. If it’s white, the mixture is too lean; in that case, increase the main jet size. If it’s brown (chocolate-colored), you’re spot on—now it’s up to you to fine-tune it to achieve a nice light brown. If the color is black, the mixture is too rich—meaning there’s too much gas—so you’ll need to use a smaller jet.