Regarding my 2009 Honda CB1000R. . How do I disconnect the plastic fuel line connector from the fuel pump on the underside of the fuel tank?

I'm not sure without seeing it but oriellies has the tools to disconnect them

Track down the fuel line to the fuel pump and check the wiring there. You should have good power to the pump, and you should have a good electrical ground. If you have both but the pump isn't pumping, and the tank has plenty of good fresh gas and the gas petcock is turned on, then the fuel pump needs replacing.

Hi Bobby:
Check this Fuel Pump Removal & Installation...

1. Before servicing the vehicle, refer to the Precautions Section.
   
2. Relieve fuel system pressure.
   
3. Drain the fuel tank.
   
4. Remove or disconnect the following:
   Negative battery cable Fuel filler and vent hoses Fuel tank skid plate Fuel tank wiring connectors Fuel supply and return lines Fuel tank Fuel pump assembly
   
   

Fig. Fuel pump assembly mounting
Zoom Image link: HERE

To install:

1. Install or connect the following:
   Fuel pump assembly Fuel tank. Tighten the bolts to 27 ft. lbs. (36 Nm). Fuel supply and return lines Fuel tank wiring connectors Fuel tank skid plate Fuel filler and vent hoses Negative battery cable
2. Start the engine and check for leaks.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Check this Fuel Pump Removal & Installation...

1. Before servicing the vehicle, refer to the Precautions Section.
   
2. Relieve fuel system pressure.
   
3. Drain the fuel tank.
   
4. Remove or disconnect the following:
   Negative battery cable Fuel filler and vent hoses Fuel tank skid plate Fuel tank wiring connectors Fuel supply and return lines Fuel tank Fuel pump assembly
   
   

Fig. Fuel pump assembly mounting
Zoom Image link: HERE

To install:

1. Install or connect the following:
   Fuel pump assembly Fuel tank. Tighten the bolts to 27 ft. lbs. (36 Nm). Fuel supply and return lines Fuel tank wiring connectors Fuel tank skid plate Fuel filler and vent hoses Negative battery cable
2. Start the engine and check for leaks.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Removal & Installation

1. Before servicing the vehicle, refer to the Precautions section.
   
2. Disconnect the negative battery cable.
   
3. Relieve the fuel pressure.
   
4. Remove or disconnect the following:
   
   • Rear seat cushion
     
   • Plastic access panel
     
   • Fuel pump wiring harness connector
     
   • Fuel lines
     

     View of fuel pump fittings through the floor pan
     Click to Enlarge

     Remove the locking ring from the fuel pump sender with special tool Fuel Tank Sender Wrench D84P-9275-A
     Click to Enlarge

   • Fuel pump module lock ring. Use special tool Fuel Tank Sender Wrench D84P-9275-A.
     
   • Fuel pump module
     

To install:

1. Install or connect the following:
   
   • Fuel pump module with a new O-ring seal
     
   • Fuel pump module lock ring using special tool Fuel Tank Sender Wrench D84P-9275-A
     
   • Fuel lines
     
   • Fuel pump wiring harness connector
     
   • Plastic access panel
     
   • Rear seat cushion
     
   • Negative battery cable
     
2. Start the engine and check for leaks and proper operation.
   

hope this helps plz vote comment reply if need more help

Removal & Installation
To Remove:

1. Before servicing the vehicle, refer to the precautions at the beginning of
   this section.
   
2. Release fuel pressure.
   
3. Remove or disconnect the following:
   
   
   
   • The rear seat
     
     
     
     
     
     Electrical Connector
     
     
     
     
     
   • The fuel pump electrical connector
     
     
     
     
     
     Battery Cable
     
     
     
     
     
   • Battery cable
   
   
4. Raise and safely support the vehicle
   
5. Remove or disconnect the following:
   
   
   
   
   
   Fuel Tank Drain
   
   
   
   
   
   
   
   • Fuel from fuel tank
     
     
     
     
     
     Stabilizer Bar
     
     
     
     
     
     
     
     
     
     Stabilizer Bar and EVAP Canister
     
     
     
     
     
   • The rear stabilizer bar brackets from body
     
   • Stabilizer bar toward rear of vehicle
     
     
     
     
     
     Fuel Filler Tube
     
     
     
     
     
   • The fuel filler tube from fuel tank
     
     
     
     
     
     Fuel And EVAP Lines
     
     
     
     
     
   • Fuel and EVAP lines
   
   
6. Position transmission jack under fuel tank assembly.
   
7. Remove fuel tank straps bolts passenger side first.
   
8. Lower fuel tank and remove the purge line and vent line.
   
9. Disconnect fuel line from fuel pump module by depressing quick connect
   retainers with thumb and fore finger.
   
10. Slide fuel pump module electrical connector lock to unlock.
    
11. Disconnect the electrical connection from the fuel pump module, by pushing
    down on connector retainer and pulling connector off of module.
    
    
    
    
    
    Fuel Tank Locknut
    
    
    
    
    
12. Use Special Tool # 6856 to remove fuel pump module locknut.
    
13. Remove fuel pump and O-ring seal from tank. Discard old seal.

To Install:

1. Wipe seal area of tank clean and place a new seal in position in the tank
   opening.
   
   
   
   
   
   Fuel Tank Locator
   
   
   
   
   
2. Position fuel pump in the tank.
   
   
   
   • Make sure the alignment tabs on the underside of the fuel pump module flange
     sits in the notches on the fuel tank.
   
   
3. Position the locknut over the fuel pump module.
   
4. Tighten the locknut using Special Tool # 6856
   
   
   
   • Torque to: 40.5 ft. lbs. (55 Nm)
   
   CAUTION
   Over tightening the pump lock ring may
   result in a leak.
   
   
5. Position the fuel tank on the transmission stand.
   
6. Install or connect the following:
   
   
   
   • Fuel pump electrical connector into hole in the body
     
   • The purge and vent lines
     
   • Fuel tank and tank straps
     
   • The fuel filler tube and tighten the clamp
     
   • The stabilizer bar and install bolts
   
   
7. Lower vehicle.
   
8. Install or connect the following:
   
   
   
   • The fuel pump electrical connector that is in the rear seat
     
   • The rear seat
     
   • The battery cable
   
   
9. Fill fuel tank.
   
10. Use the DRB or equivalent scan tool to pressurize the fuel system.
    
11. Check for leaks.

Removal

Remove fuel filler cap and perform Fuel System Pressure Release procedure.

1. Disconnect negative cable from battery.
2. Insert fuel siphon hose into fuel filler neck and push it into the tank.
3. Drain fuel tank dry into holding tank or a properly labeled GASOLINE safety container.
4. Raise vehicle on hoist.
5. Use a transmission jack to support the fuel tank. Remove bolts from fuel tank straps. Lower tank slightly.
6. Clean area around fuel tank module and tank to keep dirt and foreign material out of tank.
7. Disconnect fuel lines from fuel pump module by depressing quick connect retainers with thumb and fore finger
8. Slide fuel pump module electrical connector lock to unlock.
9. Push down on connector retainer and pull connector off module.
10. remove plastic locknut counterclockwise to release pump module
11. Carefully remove pump module and O-ring from tank
12. Discard old O-ring.

INSTALLATION

1. Wipe seal area of tank clean and place a new O-ring seal in position on pump.
2. Position fuel pump in tank with locknut.
3. Tighten locknut to 53 N·m (43 ft. lbs.)
4. Connect fuel lines.
5. Plug in electrical connector. Slide connector lock into position.
6. Raise fuel tank, install bolts into fuel tank straps and tighten.
7. Lower vehicle on hoist.
8. Connect negative cable from battery.
9. Fill fuel tank. Check for leaks.
10. Install fuel filler cap.

It is believed that the fuel pump is in the fuel tank, and you have to take the tank off the vehicle to replace it.

just remove the back seat, disconnect the battery, take off the gas cap to discharge the vapors. Then remove the plate that covers the fuel pump and disconnect the lines and electrical connectors. The only time you take off the gas tank if your replacing it. happying hunting!

The fuel pump is in the fuel tank.
1) Disconnect the negative battery cable from the battery
Remove the fuel filler cap.
2) Relieve the fuel pressure by using a box end wrench on the 6mm service bolt at the fuel rail (on motor) while holding the special banjo bolt with another wrench.
Place a rag over the 6mm service bolt and slowly loosen the bolt one complete turn to release the fuel line pressure.
3) Remove the fuel tank.
Remove the drain bolt and drain the fuel from the tank.
Disconnect the 3P connector in the trunk
Remove the two-way valve cover and the fuel hose protector
Disconnect the hoses.
While supporting the tank, remove the strap bolts and the fuel tank should be free.
4) Disconnect fuel lines and connector from the fuel pump
Remove the fuel pump mounting nuts
5) When installing, torque fuel pump mounting nuts to 4 lb-ft (6 Nm). Torque fuel line bolt to 20 lb-ft (28Nm)