Buying a Used Yamaha FX140: Really Check the Operating Hours

The hour meter in the display is considered of limited reliability on older craft. On the FX140, M-JET DIAGNOSTIC reads the operating hours from the control unit, split into RPM ranges.

What you see at the viewing

• Total hours and distribution across six RPM ranges
• Fault memory with all eight to twelve possible codes
• Live values at standstill: temperature, voltage, air pressure
• Model and serial number to compare with the papers

How to judge the result

Many hours below 4000 rpm point to calm riding, many in the upper range to sporty use. A clean memory is no seal of quality, because a freshly cleared memory looks the same. So also check the live values and take a test ride. On a 20-year-old craft, pump, impeller and battery belong in the check too.

Related topics

• Yamaha FX140: Overheat Indicator On and Engine in Limp Mode
• Yamaha FX140 Fault Codes: List and Meaning
• Checking a Used Yamaha WaveRunner: Diagnostics Before You Buy
• Diagnostics and fault codes for your Yamaha model
• All Yamaha WaveRunner diagnostics topics

Everything runs via app over Bluetooth, for Yamaha WaveRunners from model year 2002 to today. Learn more about the M-JET DIAGNOSTIC for Yamaha WaveRunner.