If your fuel pump is not priming on your 2004 Honda CBR 1000RR, there are a few things that you can check to diagnose and potentially fix the issue:
- Check the fuel pump fuse: Locate the fuel pump fuse in the fuse box and check if it's blown. If it is, replace it with a new one and see if the fuel pump primes.
- Check the fuel pump relay: The fuel pump relay is another common culprit of fuel pump issues. Locate the fuel pump relay in the fuse box and check if it's working properly. You can do this by swapping it with a known working relay, such as the horn relay, and seeing if the fuel pump primes.
- Check the fuel pump connectors: Make sure that the electrical connectors for the fuel pump are securely connected and free from corrosion. Use a multimeter to check for continuity between the fuel pump and the battery to see if there is an issue with the wiring.
- Check the fuel pressure regulator: If the fuel pressure regulator is malfunctioning, it can cause the fuel pump not to prime. Check the fuel pressure regulator to see if it's working correctly.
- Check the tip-over sensor: The tip-over sensor is designed to shut off the fuel pump in the event of an accident. Check the tip-over sensor to see if it's working properly.
If none of these steps help solve the problem, then it's possible that the fuel pump itself is faulty and may need to be replaced.
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