Kawasaki Faces N.H.T.S.A. Inquiry Over Possible Stalling Issue The National Highway Traffic Safety Administration is investigating a possible stalling problem that could affect almost 10,000 Kawasaki motorcycles. The inquiry covers 2013 Ninja 300 models, according to a report posted on the agency's Web site. The agency says 18 complaints, as well as other research, indicates "the subject motorcycle engines are stalling when the operator reduces throttle input, e.g. slowing for stopped traffic." One rider in a complaint filed on May 28 wrote, "I was coming to a stop. When I pulled the clutch in the engine stalls and one time so far I nearly got hit by a car. The Ninja 300 model is fuel-injected, "which many dealers have identified as contributing to this issue," the agency said. Kawasaki has confirmed that the fuel injection system is a new feature for the smallest model of the Ninja family. The Ninja 300 replaces the 2012 Ninja 250, which used carburetors. The investigation is called a preliminary evaluation. Should investigators find additional reason for concern, the investigation would be upgraded to an engineering analysis. That escalation is more likely, but not certain, to result in a recall. Sean Alexander, a spokesman for Kawasaki, said the company was cooperating with the agency and owners to resolve the concern.