Should fuel pump buzz all the time? - Kawasaki Vulcan Forum : Vulcan Forums
 
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post #1 of 3 (permalink) Old 08-30-2019, 06:51 AM Thread Starter
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Join Date: Mar 2018
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Year/Make/Model: 2016 Kawasaki VN 900 Classic
Displacement/CC's: 900
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Should fuel pump buzz all the time?

Hi folks!
We all know this normal buzz sound when turning the bike on. So on my bike it worked always the same: turn the key, then a fuel pump sound for a second, then quiet again.

Recently I began to notice this sound when the engine is running. Is there something wrong in the electrical circuit or I just did never notice this before? I can tell you I'm pretty sure this noise was not coming out when the engine was running. It has started right after I was rewiring additional devices (phone charger and dash cam), but no major changes: just have put my phone charger to the headlight circuit (so it couldn't drain the battery).

If it's abnormal, where to look to?
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post #2 of 3 (permalink) Old 08-30-2019, 12:22 PM
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I don't hear anything from the fuel pump after it switches off following turning on the key when starting the Vulcan, probably because the exhaust and other engine noises drown out noise from the fuel pump. I have several electrical add-ons as well and they operate via relays so that they run only when the engine is running.

If your Vulcan runs fine it is possible that you have simply become sensitised to the fuel pump buzz and that there is nothing wrong.

'07 Kawasaki Vulcan 900 Classic LT

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post #3 of 3 (permalink) Old 08-30-2019, 08:30 PM
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I'm with Hot Cruiser, can't hear it over the "other" noises

2007 VN 900LT
Ebony Black & Galaxy Silver

Highway bars w/pegs
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Cobra 2 into 1 HP Pro w/peashooter tip
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Home brewed aux. brake light
Home brewed Leather Lowers
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