Dynojet Jet Kit Kawasaki Zephyr 400 1990-1994 | J2160

TESTED TO PERFECTION Dynojet's jet kits are designed to upgrade every part of your carburetors air/fuel ratio with included step-by-step instructions for whatever you need upgraded. From your fuel needle to the main air jet, Dynojet has extensively tested every component, which means that you'll see results as soon as you rev the engine. SMOOTHER POWER These jet kits give some extreme upgrades in a small package. They increase power and smoothness throughout the entire rev range while maintaining fuel economy. There are multiple kit options from stock commute