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Discussion Starter #1
Just got my R300 about a month ago. Two weeks after riding, the engine would cut off every now and again while im driving to and from work. Along with that, the speedometer would jump numbers around like crazy. I figured it may be a loose battery terminal and tightening the terminals seemed to have fixed it. Now im hearing a strange "jet engine" like sound coming from the tank when i turn the bike on. This sound wasnt there before i tightened the terminals. Kinda of like a whirring sound. Im just wondering if this is normal for the bike? I have a day off in two weeks and ill be taking my bike to the dealer.

*First time bike owner
 

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Does the sound go away after a while?

Next time you're by the bike, turn the key on (don't start it). The "whirring" sound should go away in a second, that's your que to start the bike afterwards.
 

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The fuel pump will make noise for 2-3 seconds after you turn the key on, which is normal.
by your "jet engine " description, does that mean its very loud? or you just meant the sound itself was similar..
 

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Discussion Starter #5
Thanks for replying guys.

@dollarbill the "whirring" sound it makes when i turn the key to on is different from the one "jet engine" like sound. The jet engine is low pitched and stays there until all throughout the ride until i park and turn off the bike.
@Odin the sound itself is similar. It comes on after i start the bike and it's coming from the tank. It wasnt there before (before i tightened the battery terminal).

do you guys hear this on your rebels?
 

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Have you checked the fuel lines? Or maybe it's the actual gas tank latch/vent. A jet engine sound to me would mean there's airflow coming from somewhere. Does it sound like this guys Kawasaki?:
 

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Can I have a guess? Shooting in the dark, but here goes...

Is the noise perhaps the radiator fan? Have a look at the coolant level and check it's where it should be.

Good luck and I hope you get to the bottom of the mystery soon.
 

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Holypotatoes! yes exactly like that? is that an issue? Would you guys suggest i hold off riding my bike until i get to the dealer?
 

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Holypotatoes! yes exactly like that? is that an issue? Would you guys suggest i hold off riding my bike until i get to the dealer?
That sound is the fuel pump and it's usually not of any concern as some are just loud. However, you said your bike was cutting out a few times which is worrisome. There could be something wrong with the pump itself, OR, one of the vents is clogged. I'd first try opening the gas cap, and try starting the bike leaving the gas tank open. (I don't even know if the Rebel will allow you to do this with all of their new safety features, but try it.) If the sound stops with the tank open like that, then you can say there's a clogged vent. If the sound continues, then it's the fuel pump, and if so, you may want to have it checked out. Had you not said your bike was cutting out periodically, I'd say don't worry about it. But being that you said that, it's probably worth it to get checked out as it sounds like your bike is starving for gas periodically which is not good.
 

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I have a similar problem. I would not describe it exactly as a jet engine sound, but it is a low, coarse whirring (for lack of a better term) sound that builds as revs increase. Took it to the the dealership and they say they hear nothing, but I hear it loud and clear. The bike (300) has about 2400 miles and the sound is of recent origin. Any ideas as to what this is would be appreciated. I will continue to take it to the dealership until this is fixed, as the bike is still under warranty.
 
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