Yamaha FX140 and FX Cruiser Diagnostics (2002–2008)

The early FX models with the MR-1 engine have been on the water for over 20 years. M-JET DIAGNOSTIC supports FX140, FX Cruiser, FX HO and FX Cruiser HO of model years 2002 to 2008.

What is special about the early FX

• Four-cylinder with 998 or 1052 cc
• On the FX1000 one ignition coil serves two cylinders, tested as a pair of 1 and 4 and a pair of 2 and 3
• Four injectors and fuel pump for individual testing
• Manageable fault range with roughly eight to fourteen codes on the early control units

Little electronics, clear hints

Because the early control units have fewer functions, the messages are unambiguous: air pressure, intake temperature, engine temperature, battery voltage, camshaft, pulser coil or slant switch. On vehicles this age, always check battery, ground cable and connectors before you replace a part.

Related topics

• Reading Yamaha WaveRunner Fault Codes
• Yamaha FZR and FZS Diagnostics (SHO, 2009–2016)
• Yamaha VXR and VXS Diagnostics (2011–2014)
• Yamaha FX140 Fault Codes: List and Meaning
• 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.