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2003 Honda CRF 450 Carburetor Disassembly

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  1. 2003 Honda CRF 450 Carburetor Disassembly, Turn Fuel Off: étape 1, image 1 de 1

    • Move the fuel lever from the on position to the off.

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  2. 2003 Honda CRF 450 Carburetor Disassembly, Drain Pan: étape 2, image 1 de 1

    • Place a drain pan under the motorcycle to catch any excess fuel.

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  3. 2003 Honda CRF 450 Carburetor Disassembly, Remove Seat: étape 3, image 1 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Seat: étape 3, image 2 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Seat: étape 3, image 3 de 3

    • Remove the two bolts from each side of the seat with a 10mm socket.

    • Lift up on the rear of the seat to remove.

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  4. 2003 Honda CRF 450 Carburetor Disassembly, Loosen Air Intake Boot: étape 4, image 1 de 1

    • Loosen the screw with a phillips head screwdriver so the clamp can move freely.

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  5. 2003 Honda CRF 450 Carburetor Disassembly, Exhaust Bolt: étape 5, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Exhaust Bolt: étape 5, image 2 de 2

    • Loosen the 12mm bolt to separate the exhaust muffler from the exhaust header.

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  6. 2003 Honda CRF 450 Carburetor Disassembly, Lower Sub-Frame Bolts: étape 6, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Lower Sub-Frame Bolts: étape 6, image 2 de 2

    • Remove the 10mm lower sub-frame bolts on each side of the motorcycle.

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  7. 2003 Honda CRF 450 Carburetor Disassembly, Upper Sub-Frame Bolt: étape 7, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Upper Sub-Frame Bolt: étape 7, image 2 de 2

    • Remove the 10mm upper sub-frame bolt from the motorcycle.

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  8. 2003 Honda CRF 450 Carburetor Disassembly, Sub-Frame Removal: étape 8, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Sub-Frame Removal: étape 8, image 2 de 2

    • Remove the sub-frame assembly from the rest of the motorcycle.

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  10. 2003 Honda CRF 450 Carburetor Disassembly, Remove Fuel Line: étape 9, image 1 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Fuel Line: étape 9, image 2 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Fuel Line: étape 9, image 3 de 3

    • Using needle-nose pliers, loosen the clamp and slide it forward on the fuel line. Then remove the fuel line.

    • The fuel line should contain a small amount of fuel, so beware of spillage.

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  11. 2003 Honda CRF 450 Carburetor Disassembly, Loosen Clamp: étape 10, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Loosen Clamp: étape 10, image 2 de 2

    • Loosen the clamp on the front of the carburetor with the Phillips head screwdriver.

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  12. 2003 Honda CRF 450 Carburetor Disassembly, Remove Shock Bolts: étape 11, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Remove Shock Bolts: étape 11, image 2 de 2

    • Remove the top and bottom shock bolts with 17mm socket.

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  13. 2003 Honda CRF 450 Carburetor Disassembly, Remove Shock: étape 12, image 1 de 1

    • Remove the shock from the motorcycle.

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  14. 2003 Honda CRF 450 Carburetor Disassembly, Plastic Cover: étape 13, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Plastic Cover: étape 13, image 2 de 2

    • Remove this screw with the 4mm hex key

    • Now remove the plastic cover, allowing access for the removal of the throttle cables.

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  15. 2003 Honda CRF 450 Carburetor Disassembly, Slack Adjusters: étape 14, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Slack Adjusters: étape 14, image 2 de 2

    • Loosen the top and bottom slack adjusters. This will allow you to slide the slack adjusters out from the body of the carburetor.

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  16. 2003 Honda CRF 450 Carburetor Disassembly, Side Shrouds: étape 15, image 1 de 1

    • Remove the side shrouds from the motorcycle by loosening the four 8mm screws. Complete this step for both sides of the bike.

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  17. 2003 Honda CRF 450 Carburetor Disassembly, Fuel Tank Bolts: étape 16, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Fuel Tank Bolts: étape 16, image 2 de 2

    • Remove the 8mm bolt above the fuel tank.

    • Remove the safety clip at the bottom of the fuel tank.

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  18. 2003 Honda CRF 450 Carburetor Disassembly, Fuel Tank Removal: étape 17, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Fuel Tank Removal: étape 17, image 2 de 2

    • Remove the 8mm bolt from the fuel petcock.

    • Then remove the fuel tank from the motorcycle.

    • Tilting the fuel tank (second picture) will keep it from draining/spilling.

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  19. 2003 Honda CRF 450 Carburetor Disassembly, Wiring Harness: étape 18, image 1 de 1

    • Gently press on the plastic release on the clip to separate the wiring harness from the carburetor.

    • Be careful not to break the plastic clip.

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  20. 2003 Honda CRF 450 Carburetor Disassembly, Hot Start Cable: étape 19, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Hot Start Cable: étape 19, image 2 de 2

    • Un-thread the 13mm plastic hot start cable from the carburetor.

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  21. 2003 Honda CRF 450 Carburetor Disassembly, Remove Carburetor: étape 20, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Remove Carburetor: étape 20, image 2 de 2

    • At this stage, everything should be disconnected and the carburetor can be removed from the motorcycle.

    • The carburetor will more than likely still contain fuel, so be careful transporting it to the area where you will disassemble it.

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  22. 2003 Honda CRF 450 Carburetor Disassembly, Clean Carburetor: étape 21, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Clean Carburetor: étape 21, image 2 de 2

    • Gently brush and blow off any debris from the carburetor.

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  23. 2003 Honda CRF 450 Carburetor Disassembly, Disassemble Carburetor: étape 22, image 1 de 2 2003 Honda CRF 450 Carburetor Disassembly, Disassemble Carburetor: étape 22, image 2 de 2

    • Loosen and remove the 5 screws at the bottom of the carburetor, with the Phillips head screwdriver, to detach the bowl. Then remove the bowl.

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  24. 2003 Honda CRF 450 Carburetor Disassembly, Remove Float: étape 23, image 1 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Float: étape 23, image 2 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Float: étape 23, image 3 de 3

    • Remove the shaft from the two posts sticking up on the inside of the carburetor.

    • Remove the float.

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  25. 2003 Honda CRF 450 Carburetor Disassembly, Remove Jets: étape 24, image 1 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Jets: étape 24, image 2 de 3 2003 Honda CRF 450 Carburetor Disassembly, Remove Jets: étape 24, image 3 de 3

    • Remove the jets from the body of the carburetor.

    • Thoroughly clean all jets and body of carburetor.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Tony Rhodes

Membre depuis le 03/31/22

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