Old Question!
https://www.google.com/search?q=Polaris+Sportsman+94+400L.+How+to+fix+a+no+spark+problemTo fix a no-spark issue on a Polaris Sportsman 400L, systematically check the spark plug, kill switch (unplug the black wire from the CDI to test), ignition coil (check grounds, wiring, and resistance), and the pulse coil (under the magneto cover, adjust its gap to the flywheel magnet). A faulty stator, CDI, or a corroded connection in the kill switch wiring are common culprits; test resistances with a multimeter and ensure all grounds are clean and tight. Quick Checks & BasicsSpark Plug: Remove, inspect for fouling (oil/fuel), and check the gap (0.028-0.035 inches usually).Kill Switch/Safety: Disconnect the black wire at the CDI module; if it sparks now, the kill switch or related wiring is faulty.Battery: Ensure it's charged, as a weak battery can affect ignition.
