Determining whether your 2007 Kawasaki Ninja EX250 has a high idle or if it is within normal parameters requires some context and comparison with standard specifications. Typically, motorcycles have a specific idle speed specified by the manufacturer, which is the rotational speed of the engine when it is in neutral and not under load.
To determine if your motorcycle's idle speed is high or normal, you can consult the owner's manual or service manual for your specific model. These manuals usually provide information on the ideal idle speed range. If you have access to the manual, it's advisable to refer to the section that discusses the idle speed and adjustment procedure.
As a general guideline, the idle speed for the Kawasaki Ninja EX250 should be around 1,300 to 1,500 RPM (revolutions per minute) when the engine is fully warmed up. If your motorcycle consistently exceeds this range or exhibits erratic idle behavior, it may indicate an issue with the idle control system, such as a malfunctioning throttle position sensor, a vacuum leak, or a clogged idle circuit. In such cases, it would be advisable to have the bike inspected by a qualified mechanic or Kawasaki dealership to diagnose and address the problem.
Remember that motorcycles can have individual variations, and environmental factors like altitude and ambient temperature can also influence idle speed. However, if you suspect that your motorcycle's idle speed is abnormally high or causing operational issues, it's best to consult the manual or seek professional assistance to ensure everything is in proper working order.