The 2023 Kawasaki Zx400 has 1 NHTSA recall campaign affecting an estimated 991 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 3 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
Kawasaki Motors Corp., U.S.A. (KMC) is recalling certain 2023 ZX400SPFNL motorcycles. The alternator may fail due to a loose connection between the rotor and crank shaft, causing an engine stall.
An engine stall can increase the risk of a crash.
Dealers will inspect and tighten the rotor bolt, as necessary, free of charge. Owner notification letters were mailed August 14, 2023. Owners may contact KMC customer service at 1-866-802-9381.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“The contact owned a 2023 kawasaki zx400. The contact stated that while driving at an undisclosed speed, cylinder three started shuddering and misfiring. As a result, flames were noticed coming from the front area, near the engine compartment, causing the vehicle to be burned down. No one was…”
“The contact owns a 2023 kawasaki zx400 motorcycle. The contact state while riding approximately 65 mph and in 6th gear, the motorcycle lost motive power. In addition, while downshifting into the lower gears, the motorcycle had reduced power until 4th gear. The engine seized and the contact grabbed…”
“I was leaving a stop light in road mode. I took off smoothly with no rapid acceleration. I was in second gear and was going roughly 20 mph, when suddenly the bike stalled and the rpms immediately dropped. I was jerked forward but stood on the bike. However, it caused me to drop it on my right…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2023 Kawasaki Zx400 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.