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Yamaha FT9.9GE - User Manual

Yamaha FT9.9GE
226 pages
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Table of Contents

Questions and Answers

  • B
    Brandi RodriguezAug 19, 2025
    What to do if Yamaha Outboard Motor fuel management gauge shows incorrect fuel consumption?
    • K
      Kathleen BrownAug 19, 2025
      If the fuel management gauge shows incorrect fuel consumption, the engine recognition might be wrong (especially for multi-applications). To fix this, default the engine number and turn the key switch on in order from the portside engine to re-memorize each engine number.
  • M
    Mrs. Mariah DavisAug 21, 2025
    What to do if the Yamaha FT9.9GE Outboard Motor gauge display does not wake up?
    • S
      Sean DaughertyAug 21, 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, if necessary, replace the gauge itself.
  • J
    Joseph FrankAug 25, 2025
    Why Yamaha FT9.9GE illumination does not light?
    • P
      Patrick MyersAug 25, 2025
      If the illumination does not light, it could be due to a lack of electrical power or a damaged gauge. You should try replacing the fuse, connecting the couplers securely, replacing the damaged wire or hub, or replacing the gauge.
  • J
    Janet BennettAug 26, 2025
    How to fix Yamaha FT9.9GE tachometer showing incorrect engine RPM?
    • P
      Pam RosarioAug 26, 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.
  • D
    Debbie RamirezAug 28, 2025
    What causes Yamaha Outboard Motor fuel management gauge to show incorrect remaining fuel?
    • J
      Jonathan MartinAug 28, 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.
  • M
    mary53Aug 30, 2025
    What to do if Yamaha FT9.9GE gauge shows “----”?
    • A
      Amanda CrawfordAug 30, 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.
  • N
    Nicholas HannaSep 1, 2025
    Why Yamaha Outboard Motor Speedometer or Comb. Speedometer & Fuel mgt gauge shows incorrect fuel level?
    • J
      Jeffrey RhodesSep 2, 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.
  • E
    Elizabeth CookSep 4, 2025
    How to fix Yamaha FT9.9GE Outboard Motor trim gauge showing incorrect position?
    • H
      hernandezshannonSep 4, 2025
      If the trim gauge shows an incorrect position, the initial position setting might be wrong, or the trim sender 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 sender.
  • T
    Thomas DeckerSep 6, 2025
    Why Yamaha FT9.9GE Outboard Motor gauge operates unstably?
    • M
      mcarpenterSep 6, 2025
      If the gauge operates unstably, it could be because a resistor is not connected to the ending hubs. Connect the gray 6-pin cap to the ending multi-hubs.
  • J
    Jordan BoyleSep 8, 2025
    What causes Yamaha FT9.9GE Outboard Motor gauge response to be poor or down?
    • M
      Monica HernandezSep 8, 2025
      If the gauge response is poor or down, a market obtainable unit connected to the system may have failed, or the signal volume has exceeded 50% of the capacity. Try replacing the unit or removing the heavy signal output unit.

Summary

Installation

Uncrating Procedure

Detailed steps for safely uncrating the outboard motor from its steel frame packaging.

Mounting the Outboard Motor

Guidance on proper outboard motor mounting for optimal performance and reliability.

Water Level Guideline (4-Stroke Engines)

Explains optimal water level guideline for 4-stroke motors to ensure performance and prevent damage.

Mounting the Remote Oil Tank

Details on installing the remote oil tank for 2-stroke V4 and V6 oil injection engines.

Propellers

Propeller Selection

Guidance on selecting the appropriate propeller based on application and load.

WOT Operation Range Table

Table showing recommended engine RPM ranges for Wide-Open-Throttle operation.

Remote Controls

Remote Control Applications

Describes throttle control systems and lists remote control models and their applications.

Remote Control Cables

Guidance on selecting and routing remote control cables for proper operation.

Tiller Handles

6 x4 Multi-Function Tiller Handle

Overview of the multi-function tiller handle and its electrical functions.

Conventional Gauge (6 Y5 & 6 Y7)

Mounting the Meters

Procedure for mounting gauges, including selection of location and angle.

Analog Tachometer

Essential for outboard performance, monitors engine speed for efficient operation.

Digital Tachometer

Digital tachometer with elapsed hour, trim, and oil warning indicators for engine speed monitoring.

Speedometer

Indicates boat speed by measuring water impact force, with calibration options.

Fuel Management Gauge

Functions as fuel flow, consumption, economy gauge, and RPM synchronizer.

Coolant Pressure Meter

Warns of cooling system problems, shares sender with temp. meter on some models.

Coolant Temp. Meter

Indicates cooling water temperature, with a red zone for overheating warnings.

Digital Network Gauge (6 Y8)

Wiring Diagrams

Wiring diagrams for single, twin, and triple engine configurations.

Initial Gauge Setup

Procedure for initial setup of digital network gauges, especially for multi-engine setups.

Troubleshooting

Table of common system or gauge issues, their causes, and recommended measures.

Battery

Recommended Battery

Guidelines for selecting the correct battery capacity and type for Yamaha engines.

Battery Wiring

Instructions for battery wiring, including isolator-equipped models and house batteries.

Appendix

Pre-Delivery Inspection (PDI) Checks

Checklist for pre-delivery inspection to enhance customer satisfaction.

Yamaha FT9.9GE Specifications

General IconGeneral
BrandYamaha
ModelFT9.9GE
CategoryOutboard Motor
LanguageEnglish

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