Yamaha WaveRunner Diagnostics by Model: Fault Codes and Typical Problems

You ride a specific Yamaha and look for answers to a concrete problem? Here you find, for every supported four-stroke model, the fault codes at a glance and the questions owners ask most often, each with what M-JET DIAGNOSTIC can determine about it.

How the pages are built

• Fault code list per control unit generation, with the meaning of the numbers
• Typical questions such as limp mode, overheat alarm, warning tone, starting problems and unsteady idle
• Used-purchase check with operating hours per RPM range
• Only topics that can be determined or solved with a diagnostic tool

Four-stroke models only

The pages cover the four-stroke models from 2002, that is FX, VX, GP, EX, FZR/FZS, SuperJet (4-stroke) and JetBlaster. Two-stroke models are not part of the diagnostics.

Yamaha FX140 / FX1000 (2002–2005)

• Yamaha FX140: Overheat Indicator On and Engine in Limp Mode
• Yamaha FX140 Fault Codes: List and Meaning
• Yamaha FX140 No Longer Reaches Top Speed
• Yamaha FX140 Won't Start, Starter Turns
• Buying a Used Yamaha FX140: Really Check the Operating Hours

Yamaha FX1000(A) / FX1100 (2003–2008)

• Yamaha FX1000(A) and FX1100 Fault Codes: List
• Yamaha FX1100: Idle Hunts or Engine Stalls
• Yamaha FX1100: No-Wake Mode and Steering Switch Report Faults
• Yamaha FX1100 with Catalytic Converter (2007/2008): Exhaust Manifold Temperature
• Yamaha FX1100 Code 99: Irregular Intake Air

Yamaha GP1300R (2003–2008)

• Yamaha GP1300R Fault Codes: List and Meaning
• Yamaha GP1300R: Unstable Idle, Check the Stepper Motor
• Yamaha GP1300R: YPVS Fault (Code 100) Check
• Yamaha GP1300R: Overheat Warning and Exhaust Manifold Temperature
• Yamaha GP1300R Won't Start: Check Ignition, Injectors, Pump
• Used Yamaha GP1300R: Check Engine Hours and Condition

Yamaha VX110 / VX1100 (2005–2015)

• Yamaha VX110 and VX1100 Fault Codes: List
• Yamaha VX1100: Throttle Valve Faults (ETV, TPS, APS)
• Yamaha VX1100: Limp Mode, RPM Stuck Around 5000
• Yamaha VX110: Temperature Alarm After 15 Minutes Despite New Sensors
• Yamaha VX1100: Unstable Idle, Engine Stalls When Docking
• Yamaha VX1100 Won't Start: Relays, Pump, Ignition
• Yamaha VX1100: Steering Sensor Fault (Code 55)
• Used Yamaha VX110 / VX1100: Check Hours and Condition

Yamaha VXR / VXS (2011–2014)

• Yamaha VXR and VXS Fault Codes: List and Meaning
• Yamaha VXR: RPM Stuck at 5000, Speed Stays Around 50 km/h
• Yamaha VXR and VXS: Check Reverse and No-Wake Switch
• Yamaha VXR: Knock Sensor Fault (Code 17)
• Yamaha VXR: Power Fading, Check Intake Pressure and Throttle
• Buying a Used Yamaha VXR and VXS: Was It a Rental?

Yamaha FX HO / Cruiser HO 1.8 litre (2008–2014)

• Yamaha FX HO and Cruiser HO (2008–2014) Fault Codes: List
• Yamaha FX HO: Accelerator Sensor and Throttle Valve Report Faults
• Yamaha FX HO: Overheating, Exhaust Manifold Water Temperature (Code 65)
• Yamaha FX HO: Reverse Switch (78) and No-Wake Switch (68)
• Yamaha FX HO: Teach the Idle After Cleaning or Battery Change
• Yamaha FX HO Won't Start: Check Relays and Fuel Pump
• Yamaha FX HO: Power Loss, Knock Sensor and Intake Pressure
• Yamaha FX HO: Reset the Maintenance Warning and Check Hours

Yamaha FZR / FZS (SHO, 2009–2016)

• Yamaha FZR and FZS Fault Codes: List and Meaning
• Yamaha FZR and FZS: Too Little Boost, Weak Supercharger?
• Yamaha FZR and FZS: Overheat Warning and Limp Mode
• Yamaha FZR and FZS: Knock Sensor Message and Intake Air Temperature
• Yamaha FZR and FZS: Check the Intake Pressure Sensor (Code 29)
• Used Yamaha FZR and FZS: Hours in the High RPM Range
• Yamaha FZR and FZS: Season Start Check via App

Yamaha FX SVHO / Cruiser SVHO (2014–2023)

• Yamaha FX SVHO and Cruiser SVHO Fault Codes: List
• Yamaha FX SVHO: RPM Drops to About 5000 After 20 to 30 Minutes
• Yamaha FX SVHO: RiDE, SCU and RPS Report Faults
• Yamaha FX SVHO Code 63: Intake System Reports Irregular Intake Air
• Yamaha FX SVHO Won't Start or Dies Immediately
• Yamaha FX SVHO: Not Enough Power, Check Boost Pressure
• Buying a Used Yamaha FX SVHO: What Belongs in the Diagnostic Check
• Yamaha FX SVHO: Reset the Maintenance and Flush Warning

Yamaha GP1800 / GP1800R (from 2017)

• Yamaha GP1800 and GP1800R Fault Codes: List
• Yamaha GP1800R: SCU Fault and SCU Initial Learning
• Yamaha GP1800R: Cruise and No-Wake Switch Not Responding (Code 68)
• Yamaha GP1800R: Knock Sensor (Code 17) at Full Load
• Yamaha GP1800R: Throttle Response Jerky, Check the Throttle Valve
• Yamaha GP1800R: Overheat Warning and Limp Mode
• Yamaha GP1800R: Unstable Idle and Starting Problems
• Yamaha GP1800R SVHO: Power Missing, Check Intake Pressure
• Used Yamaha GP1800R: Race Use or Leisure? Check the Hours

Yamaha VX / VX Cruiser 1.05 litre (from 2016)

• Yamaha VX and VX Cruiser (from 2016) Fault Codes: List
• Yamaha VX: Warning Tone and Limp Mode, What Does the Control Unit Report?
• Yamaha VX: Overheat Alarm on Longer Rides (Code 15 and 65)
• Yamaha VX: Three-Cylinder Runs Rough at Idle
• Yamaha VX with RiDE: Check Shifting, SCU and RPS
• Yamaha VX Won't Start: Check Relays, Pump and Ignition
• Yamaha VX: Reset the Oil Change Warning and Season Start Check
• Buying a Used Yamaha VX: Diagnostic Check at the Jetty

Yamaha EX / EX Sport / EX Deluxe (from 2017)

• Yamaha EX, EX Sport and EX Deluxe Fault Codes: List
• Yamaha EX: Engine Warning Lit, but No Code to Be Found
• Yamaha EX: Overheat Warning, Then Limp Mode: Cavitation or Sensor?
• Yamaha EX Beeps While Riding: Oil Pressure, Temperature or Battery?
• Yamaha EX Won't Start: Check Voltage, Relays and Cylinders
• Yamaha EX: Engine Stalls at Idle or Hunts
• Yamaha EX, EX Sport, Deluxe and Limited: What the App Shows per Variant
• Buying a Used Yamaha EX: Diagnostic Check Before You Buy

Yamaha SuperJet 4-stroke (from 2021)

• Yamaha SuperJet (4-Stroke, from 2021) Fault Codes: List
• Yamaha SuperJet After Capsizing: Engine Won't Start Again
• Yamaha SuperJet 4-Stroke Won't Start: Pump, Coils, Injectors
• Yamaha SuperJet: Throttle Response and Idle with Electronic Throttle Valve
• Yamaha SuperJet: Overheating in Shallow Water and Sand in the Inlet
• Used Yamaha SuperJet: Freestyle or Racing? Check the Hours
• Yamaha SuperJet: Season Start Check with Battery and Service Reset

Yamaha JetBlaster (from 2022)

• Yamaha JetBlaster (from 2022) Fault Codes: List
• Yamaha JetBlaster: Check SCU and RPS Faults
• Yamaha JetBlaster Won't Start: Relays, Pump and Cylinders
• Yamaha JetBlaster: Temperature Warning, Check Code 15 and 65
• Yamaha JetBlaster: Check Throttle Response and Throttle Valve
• Buying a Used Yamaha JetBlaster: Check Hours and Memory
• Yamaha JetBlaster: Engine Stalls at Idle or When Releasing the Throttle

Yamaha FX / GP / VX 1.9 litre (from 2024)

• Yamaha 1.9-Litre FX, GP and VX (from 2024) Fault Codes: List
• Yamaha 1.9 Litre: Classify the Thermo Sensor Message (Code 41)
• Yamaha 1.9 Litre: Knock Sensor (Code 17) and Ignition Timing
• Yamaha 1.9 Litre: RiDE, SCU and RPS on FX, GP and VX
• Yamaha 1.9 Litre FX, GP, VX Won't Start or Stalls
• Yamaha 1.9 Litre: Power Missing or Throttle Response Sluggish
• Yamaha 1.9 Litre: Overheat Alarm, Sensor or Water Path?

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.