Yet another noise to figure out - Honda Rebel Forum
 
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post #1 of 9 Old 04-01-2019, 08:57 PM Thread Starter
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Yet another noise to figure out

Hello everyone. Let me start out by saying that I've lurked around here for as long as I've had my Rebel, but I've never had a reason to ask for help. However, I'm now getting a noise that I can not figure out for the life of me. I've searched the internet for months trying to find the answer, but no dice. The sound is a kind of popping/clicking sound that only happens in motion of 40+ mph. It also seems to only happen when the throttle is engaged. It sounds like something under my tank is whipping in the wind. If I cover the gap between the frame and my gas tank while riding, I can no longer hear the noise. The sound seems arrhythmic as there is no discernable pattern to the popping/clicking. Does any of this sound familiar? Somebody please help!
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post #2 of 9 Old 04-01-2019, 08:58 PM Thread Starter
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I forgot to mention that it is a 2002.
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post #3 of 9 Old 04-01-2019, 10:15 PM
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Welcome. Sounds a bit like a slack or worn out chain.

Keepin' all the left over parts. Gonna use 'em to build another bike!

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post #4 of 9 Old 04-01-2019, 11:28 PM
 
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Could be something loose under there getting blown around by the wind. I'd remove the tank and take a good look around. You might also want to check your valve clearances, and for leaks in the exhaust system.

2016 Rebel, 2013 Royal Enfield B5, 2009 Genuine Stella, 2006 H-D Sportster 1200, 2006 Vespa GT200, 2001 Yamaha XT225
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post #5 of 9 Old 04-03-2019, 09:07 AM
 
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Blocking the wind while under throttle maintaining 40+ mph stops the sound in the tank tunnel, yup, something sounds loose there.
Gas Tank vent tube may have come off the nipple and is flapping around in the tunnel.
Carb Bowl Drain has a vent tube branching off a T fitting that goes up through the eyelet over the carb top and hangs down free, it might be misrouted up higher and is flopping around.

There is a rubber wind guard (part #15 on the frame fiche) in the tunnel that deadens the airflow from making a cyclone down the tunnel that might be torn, shifted out of place, or missing.
Your zip ties that keep the wire harness tight to the frame might be snapped and letting a wire or three flap in the breeze.


As @JerryH said, pull your tank and take a look.

2009 Honda Rebel 250
"The bravest thing for me to do is admit when I am wrong" - unknown
HRF Answer #1 You should take the MSF Rider Course
HRF Answer #2 You need to clean your carburetor
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post #6 of 9 Old 04-03-2019, 09:49 AM Thread Starter
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Thanks for the advice, everyone. I've got the tank off and I'll take a picture this evening after work. Everything seems to be in order, but ya'll definitely know more about this stuff than I do.
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post #7 of 9 Old 04-03-2019, 10:45 PM Thread Starter
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OK I've pulled the tank and made sure everything looked snug. I played with some things to see if they were loose, but found nothing. However, when I put it all back together, no more sound. I don't know what fixed it, but I'm sure glad it's gone!
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post #8 of 9 Old 04-08-2019, 02:18 PM
 
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must have chased away the gremlin when you exposed him to sunlight, lol

2009 Honda Rebel 250
"The bravest thing for me to do is admit when I am wrong" - unknown
HRF Answer #1 You should take the MSF Rider Course
HRF Answer #2 You need to clean your carburetor
HRF Answer #3 Sorry we assumed if you didn't say otherwise
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post #9 of 9 Old 04-09-2019, 11:02 AM
 
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Noises on vehicles drive me nuts. My most recent two noises that I fixed:

In a certain RPM range a high pitched wizzing sound kicks in. Sounded like a key flapping against the frame in the wind. Well, in my driveway I spent about a total of 30 minutes (spread out over like 6-7 days) revving the engine to that RPM until I found what was making the noise: the headlight LED bulb connector was banging around the headlight housing. I taped it up to pad it, but eventually just ziptied it to the bulb and now the noise is gone.

Second noise came after I put on an aftermarket gas tank. Turns out it was hitting the frame just a touch. This took a couple of tries, but eventually I padded the lower attachment point for the gas tank until it stopped. New gas tank is nice: makes the bike look a little bigger and I get an extra gallon of fuel.

tl;dr: noises suck. I was lucky that they were vibration caused, not wind caused, as they are easier to find. Glad you found yours.
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