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Weird whine / hum under acceleration. Is it normal?


contra

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Alright, so under light acceleration my bike makes this weird whine/hum sound. The way I would describe it is kind of like an electric motor under load, kinda like the sound those tiny battery powered jeeps that I had as a kid made. Im not sure if I would be able to get a high enough quality video to pick up the sound due to my exhaust being quite loud (akra carbon without the baffle) so I hope this description is sufficient. My thoughts are it might be the fuel pump making noise, but I'm pretty new to the bike world so I'm not sure if thats a thing. The noise might have been there since I bought the bike, but I only recently noticed it.
 
The noise only happens under light acceleration / when maintaining speed in the lower RPMs (maybe the higher RPMs, but the exhaust might be drowning it out because I can't hear it over ~6k rpm).
 
 
Any ideas? The only engine related mod on the bike is the exhaust.
 
Thanks in advance!
 
 

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Its the 'flux capacitor' man. Sorry, someone was probably gonna to write it.
 
I havent noticed anything like the noise you describe, I also have no other FZ around to compare it to. Could be there on mine as well I dunno. I could only assume its normal operation. Charging system or fuel injectors etc?

Crush your enemies. See them driven before you. Hear the lamentations of their women.          Fuss Life.

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Its the 'flux capacitor' man. Sorry, someone was probably gonna to write it.  
I havent noticed anything like the noise you describe, I also have no other FZ around to compare it to. Could be there on mine as well I dunno. I could only assume its normal operation. Charging system or fuel injectors etc?
Yeah I figured it might be a normal thing, so I wanted to post here before I took it to a shop to have it looked at. It just bugs me because I cant "un-notice" it, you know? Like everytime I ride the bike its all I can hear lol
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Sounds like the chain and front sprocket to me.
Normal noise, and even more so if you use an aftermarket front sprocket without the noise-deadening rubber dampers on it.

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Its the 'flux capacitor' man. Sorry, someone was probably gonna to write it.  
I havent noticed anything like the noise you describe, I also have no other FZ around to compare it to. Could be there on mine as well I dunno. I could only assume its normal operation. Charging system or fuel injectors etc?
Yeah I figured it might be a normal thing, so I wanted to post here before I took it to a shop to have it looked at. It just bugs me because I cant "un-notice" it, you know? Like everytime I ride the bike its all I can hear lol
Yeah damn, dont take it to a shop....they'll be sure to "find" something wrong with it and quite possibly take your money for nothing. Obviously I have an inherent distrust of most mechanics. Just my 2c 

Crush your enemies. See them driven before you. Hear the lamentations of their women.          Fuss Life.

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Yeah damn, dont take it to a shop....they'll be sure to "find" something wrong with it and quite possibly take your money for nothing. Obviously I have an inherent distrust of most mechanics. Just my 2c
Yeah I 100% agree with this. I do all the work on my cars, and all the work on my bike so far. I've only been riding about 2 months, so I'm not used to all the normal operating sounds of a motorcycle quite yet. I just wanted to be sure that the bike didnt have something weird going on. I'l just stay in the upper RPMs so the noise isnt noticeable  :D
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