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Yamaha 25NWC - User Manual

Yamaha 25NWC
329 pages
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90894-62983-01Worldwide Edition
RIGGING GUIDE
2014

Table of Contents

Questions and Answers

  • F
    fvazquezSep 14, 2025
    Why does my Yamaha 25NWC Outboard Motor fuel management gauge show incorrect remaining fuel?
    • A
      Amy CollierSep 14, 2025
      If the fuel management gauge shows incorrect remaining fuel, the fuel capacity setting is probably wrong. Fill the tank with fuel, and then set the correct fuel tank capacity.
  • J
    Jill SmithSep 23, 2025
    Why doesn't my Yamaha 25NWC boat speed gauge show?
    • B
      Brittney PopeSep 23, 2025
      If the boat speed and/or coolant pressure gauge isn't showing, it means the optional sensor hasn't been installed. Install the optional sensor to fix this.
  • S
    santiagosharonSep 6, 2025
    How to setup Yamaha Outboard Motor tachometer to show the oil pressure?
    • P
      porterpatrickSep 6, 2025
      Select the oil press. display.
  • A
    Amanda DavisAug 27, 2025
    How to fix Yamaha Outboard Motor tachometer showing incorrect engine RPM?
    • R
      Robert ReedAug 27, 2025
      If the tachometer shows an incorrect engine RPM, the engine recognition might be wrong (especially for multi-applications). To correct this, push the 'SET' button for 10 seconds to default the engine number, then memorize each engine number again.
  • J
    Janet BairdAug 27, 2025
    What causes Yamaha Outboard Motor fuel management gauge to show incorrect remaining fuel?
    • N
      Nancy MooreAug 27, 2025
      If the fuel management gauge shows incorrect remaining fuel, the fuel capacity setting may be wrong (specifically for SQR Fuel mgt Gauge). Fill the tank with fuel, and set the correct fuel tank capacity.
  • J
    Jason ValenciaAug 28, 2025
    What to do if Yamaha Outboard Motor gauge shows “----”?
    • S
      Samantha ElliottAug 28, 2025
      If the gauge displays '----', it indicates that the digital signal is not being received. Check that the couplers are securely connected and replace any damaged bus wires or hubs.
  • D
    Donna KingAug 30, 2025
    Why Yamaha Outboard Motor Speedometer or Comb. Speedometer & Fuel mgt gauge shows incorrect fuel level?
    • H
      Hannah BartonAug 30, 2025
      If the speedometer or combination speedometer & fuel management gauge shows an incorrect fuel level, the fuel sensor selection is likely wrong. Set up the fuel sensor to the correct resistance.
  • D
    David SparksSep 16, 2025
    Why is my Yamaha 25NWC gauge operating unstably?
    • M
      meredith80Sep 17, 2025
      If the gauge operates unstably, it's likely that the resistor isn't connected to the ending hubs. Connect the gray 6-pin cap to the ending multi-hubs to resolve this.
  • J
    Jesus BakerSep 15, 2025
    Why does my Yamaha 25NWC Outboard Motor trim gauge show the incorrect position?
    • E
      Evan RobertsSep 15, 2025
      If the trim gauge shows an incorrect position, the initial position setting might be wrong, or the trim sensor could be damaged. Put the motor in the fully trimmed-in position and reset the initial (zero) trim angle. If that doesn't work, replace the trim sensor.
  • T
    Taylor LawsonSep 7, 2025
    What to do if my Yamaha 25NWC gauge display does not wake up?
    • J
      Juan RojasSep 7, 2025
      If the gauge display doesn't wake up, it could be due to a lack of electrical power or a damaged gauge. Try these steps: replace the fuse, securely connect the couplers, replace any damaged wires or hubs, or replace the gauge itself.

Yamaha 25NWC Specifications

General IconGeneral
Engine Type2-Stroke
Starting SystemManual
Number of Cylinders2
Fuel Induction SystemCarburetor
Ignition SystemCDI
Power Output25 hp
Displacement496 cc
Fuel Tank Capacity24 L
Gear Ratio2.08:1
Recommended FuelRegular Unleaded
WOT Range5000 - 6000 rpm
SteeringTiller
Trim SystemManual

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