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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through July 12, 2006 » NOISY fuel pump « Previous Next »

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Gearhead
Posted on Tuesday, July 11, 2006 - 07:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Just got back from a 1500+ mile trip and noticed the fuel pump sounds louder than normal at key on and while engine is running.

The bike runs great, just the loud pump.

Anyone else had or have this condition?
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Indy_bueller
Posted on Tuesday, July 11, 2006 - 07:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

See if the bike is low on fuel at the same time. I forget when the new fuel pump came out, it was either 04 or 05. The bikes with the old fuel pump generally get louder as the fuel level decreases.
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Aydenxb9
Posted on Tuesday, July 11, 2006 - 09:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Mine's always sounded like a nuclear accelerator. 25,000 miles and it ain't left me stranded yet!
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Josh_cox
Posted on Tuesday, July 11, 2006 - 09:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It is just a little air in it. Notice it usually happens when you are low on fuel? You won't have a problem.
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Barker
Posted on Tuesday, July 11, 2006 - 10:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

sounds normal to me, If you have an older XB.

Thats one of my favorite things about my buell that loud fuell pump.

I love the look I get when I switch it on. People ask "Whats that noise." I say its the flux capacitor. They also ask about the fan noise. I say "Thats the jet turbine winding down." Then I will make some comment about "I knew I should not have use the afterburners in that turn back there, I should be able to pass the gixxer with out engaging it."
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Diablobrian
Posted on Tuesday, July 11, 2006 - 10:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

03-04's fuel pumps have a tendency to cavitate. It doesn't hurt anything, it's
just noisy. If it bothers you that much you can just update to the 05+ pump.
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Gearhead
Posted on Tuesday, July 11, 2006 - 11:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I should explain that I've owned the bike since new. It's an '04 XB12R, it now has just under 20,000 miles on it so I'm familiar with the regular fuel pump sound.

This is louder than what it's been in the past but it appears there's no need to worry.

Thanks, guys...
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Naughtynurse
Posted on Tuesday, July 11, 2006 - 11:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I love the look I get when I switch it on. People ask "Whats that noise." I say its the flux capacitor. They also ask about the fan noise. I say "Thats the jet turbine winding down." Then I will make some comment about "I knew I should not have use the afterburners in that turn back there, I should be able to pass the gixxer with out engaging it."

OMG that is WAY too funny!!}
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Pwnzor
Posted on Tuesday, July 11, 2006 - 11:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

gearhead I have the same bike, almost 30k miles now. Fuel pump is loud, quiet, loud, quiet, blah blah blah.

Doesn't seem to be a pattern, rhyme, nor reason to it. Works fine.
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Glitch
Posted on Tuesday, July 11, 2006 - 11:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

If your bike starts to see low pressure from the fuel pump, your engine light will come on. I forgot what the trouble code was, I just remember there is one.
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Ride365
Posted on Tuesday, July 11, 2006 - 03:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Barker - HAAAAAAAAA HAAAAAAAAAAA! Good Stuff!
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Perry
Posted on Tuesday, July 11, 2006 - 07:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The new fuel pump was introduced mid-way in the '05 year. The '05 service manual has info for both, and instructions on how to tell which one you have if you have an '05.

Mine has the old.
It sounds a bit like an air-raid siren, but still works... so far.
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Buckinfuell
Posted on Tuesday, July 11, 2006 - 08:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Fuel pump is also louder when near empty. I suppose it has to do with greater cavitation due to lower head pressure.
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Concor
Posted on Tuesday, July 11, 2006 - 09:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Ilike how they sound when the bike is running, but when i turn my key and hit the run switch mine sounds like a dying cat before i hit the start button, its actually kinda embarassing.
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Buckinfuell
Posted on Tuesday, July 11, 2006 - 09:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Concor, you ain't kidding... the pump is loud at startup. I thought something was wrong with my bike when i first got it. The other day, when I was nearing empty on the fuel tank, I could hear the fuel pump over the sound of my Drummer... i kid you not. i thought something was wrong until i filled my tank and it went away.
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