What to do if Yamaha F40BMHD fuel management gauge shows incorrect fuel consumption?
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.
What to do if the Yamaha Outboard Motor gauge display does not wake up?
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.
Why Yamaha Outboard Motor illumination does not light?
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.
How to fix Yamaha F40BMHD tachometer showing incorrect engine RPM?
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.
What causes Yamaha F40BMHD Outboard Motor fuel management gauge to show incorrect remaining fuel?
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.
What to do if Yamaha F40BMHD Outboard Motor gauge shows “----”?
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.
Why Yamaha F40BMHD Outboard Motor Speedometer or Comb. Speedometer & Fuel mgt gauge shows incorrect fuel level?
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.
How to fix Yamaha Outboard Motor trim gauge showing incorrect position?
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.
Why Yamaha F40BMHD gauge operates unstably?
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.
What causes Yamaha Outboard Motor gauge response to be poor or down?
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.
General| Engine Type | 4-Stroke |
|---|---|
| Cylinder Configuration | Inline 3 |
| Full Throttle RPM Range | 5000 - 6000 RPM |
| Fuel Induction System | Electronic Fuel Injection (EFI) |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Gear Ratio | 2.15:1 |
| Cooling System | Water Cooled |
| Steering | Remote |
| Gear Shift | F-N-R |
| Exhaust | Through Propeller |
| Displacement | 747 cc |
| Maximum Output | 40 hp |
| Ignition System | TCI |
| Alternator Output | 12V - 6A |
| Shaft Length | 20 in |
| Fuel Tank Capacity | 25 L |
| Recommended Fuel | Unleaded Gasoline |
| Bore x Stroke | 65.0 mm x 75.0 mm (2.56 in. x 2.95 in.) |
| Recommended Engine Oil | Yamalube 4-stroke outboard motor oil or equivalent SAE 10W-30 |
Crucial safety guidelines for operating the outboard motor and boat.
Explanation and location of important warning and caution labels on the outboard motor.
Recommended fuel, oil, and battery specifications for operation.
Choosing the correct propeller and understanding the start-in-gear safety feature.
Identification and overview of the primary parts of the F30A and F40B outboard motors.
Operation and safety features of the engine stop lanyard switch and button.
Guidance on installing and properly mounting the outboard motor on the boat.
Steps for engine break-in and essential pre-operation checks before starting.
Steps for starting the engine and feeding fuel for portable tanks.
Step-by-step instructions for starting the engine using manual or electric methods.
Guidelines for warming up the engine and understanding warning system activation.
Step-by-step instructions for safely stopping the outboard motor.
Key specifications including dimensions, weight, and performance data.
Details on engine type, displacement, bore, stroke, and ignition system.
Schedule detailing maintenance items, actions, and intervals for regular upkeep.
Step-by-step guide for changing the engine oil, including safety precautions.
Solutions for starting, power loss, and idling problems with the outboard motor.
Further troubleshooting for fuel systems, ignition, and warning systems.
Solutions for engine power loss, boat handling, and other operational problems.
Procedures for emergency actions, handling impact damage, and replacing fuses.
Solutions for power trim/tilt not operating and starter failure.
Step-by-step guide for starting the engine using an emergency starter rope.
Procedures to follow if the outboard motor becomes submerged.
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