Page 1 of 4 fuel pump constantly priming posted in evolution 1 3 cc gsr technical. 09 daytona 675 fuel pump keeps priming.
Airtex 1105 Mechanical Fuel Pump
Fuel pump constantly priming. After like 30 seconds the bike makes a very strange noise it just. After about 2 seconds it primes again. Never knew that was possible. The fuel pump should run for a few seconds as programmed in the ecu when the ignition is turned on then will run constantly once the engine is cranking or running. Built with smf tricks. When i turn the bike off after just letting the pump prime its 3 5 times it just starts making clicking noise.
They usually fail open with no power to the pump and no fuel. So whenever i turn on the bike the fuel pump primes. For rubber lines this will typically involve removing a hose clamp. So for anyone else who encounters a constantly priming fuel pump i guess they can fail closed and provide constant power to the pump while the key is in the on position. Fuel pump continuously priming with key in the on position the unofficial royal enfield community forum website is a fan driven project not affiliated with royal enfield motors. Priming the fuel pump step 1 disconnect the hose that connects the fuel pump to the carburetor.
There should be a relay that powers the fuel pump and i would think that is what is causing the problem. The car runs fine and everything but would like to fix it if it shouldnt be happening ive read that it can be the fuel. Hey ive noticed my fuel pump constantly primes in the on position every other car ive had normally stops after a few seconds so im presuming that this shouldnt be happening on this car. Other engines will require that you remove the line from the carburetor with a wrench. It does this like 3 times. Time to replace the oil pressure switch.
Gallery of Fuel Pump Constantly Priming
