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Odd new fuel pump noise

Had my fuel pump assembly out to check the tubing in pursuit of a starting problem. It was all fine, but on reassembly my fuel pump now seems louder and much higher pitched than previously. I think I put it all back together with the tubing unobstructed and not pressing on the inside of the tank. Does anyone recognize a whinier fuel pump as any kind of omen?
Old 10-01-2017, 09:04 PM
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That has happened to me before. I don't think it's a problem.
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'01 R1100S
'07 CBR600RR
Old 10-02-2017, 03:06 AM
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bobr11s
 
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Did you drain the fuel to remove the pump / filter ?
Either the fuel level is lower and the pump is working harder or you are more consious of the noise now that you have worked on it .
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Old 10-02-2017, 05:35 AM
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Fuel has been refilled. I turned on the ignition a couple times with the pump attached to the wires but not the fuel lines when I had it out of the tank, to make sure it was working.
Bike runs great after wringing out starter motor problem which was root cause, but some mellow has definitely been lost with the increase in volume and shrillness. Sounds like the pump is working extra hard. At less than 14K I wouldn't think the fuel filter would be clogged, and lines inside tank seemed free of kinks. I did install quick disconnects when I had it apart but they seem to flow plenty freely.
Old 10-02-2017, 09:58 AM
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Brent
 
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one of mine is noisy more so as it gets towards empty
Old 10-02-2017, 02:14 PM
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Quote:
Originally Posted by tomvv11 View Post
Fuel has been refilled. I turned on the ignition a couple times with the pump attached to the wires but not the fuel lines when I had it out of the tank, to make sure it was working.
My bike sat for close to a year while I was dealing with the clutch spline issue. Due to the age/mileage of the bike, and the fact that it sat for as long as it did, I replaced the fuel filter, fuel pickup sock, and had the injectors professionally cleaned. Having done all that, I didn't want to pump year+ old gas that was in the pump through all these new/clean components. Using 2 battery tender gator clamps harnesses, I hooked the pump to a fresh supply of fuel and a line going into a gas can. Unfortunately I made a bonehead mistake and hooked the red clamp to positive on the battery and the other red clamp to positive terminal on the pump, completely forgetting that the polarity was flipped with the 2 battery tender harnesses hooked together. I ran the pump for less than 10 seconds in total before correcting polarity. Bike started and ran fine when I got it all back together, but the pump seemed louder than it use to. 30 miles into my first ride, the pump called it quits. These pumps really don't like to be run dry. Not saying yours is guaranteed to fail soon, but don't be too surprised if it does.
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Old 10-03-2017, 05:12 AM
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Maybe I'll get a pump and filter set and carry them in my tankbag for the eventuality. Won't THAT be a jolly roadside repair? Oh, and the big O-ring. It really likes to have a new one or else pays you back with gas fumes in the garage.
Old 10-06-2017, 05:03 PM
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It really likes to have a new one or else pays you back with gas fumes in the garage.
Or slowly drip on to your cylinder head. DAMHIK
Old 10-07-2017, 01:58 AM
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