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Active Member
Anybody know what the consistent hum coming from engine is?
I'm hearing a consistent hum from the engine (2014 RT). Everything seems to be running fine... engine performance is normal... but this hum is not normal. It does it while moving or in idle. It's pitched similar to the G note on a keyboard and doesn't vary up or down (pitch) with RPM's. Any body know what I'm talking about?
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Is the hum something new?
When did it start?
Fuel pump is most likely source.
2014 Can-Am Spyder RT-S SE6 Freeway Commuter Pod
2016 Royal Enfield Classic 500 Fair-Weather Mountain Bike
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As said above fuel pump is a known issue for noise
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Active Member
My Spyder mechanic said that noise is the fuel pump. My bike was a 2014 RTL.
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Very Active Member
Very common fuel pump sound. Some have been successful having it replaced under warranty but mostly it is just considered by most dealers to be "normal". Irritating sound and expensive to replace..... Jim
2005 Windveil Blue Premium Mustang Convertible
2008 Honda GL1800/California Sidecar Trike, SOLD
2014 Platinum Silver Satin Spyder RTL, SOLD
Semper Fi
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fuel pump. Mine did that when I purchased it used. I put a capfull of marvel mystery oil in the fuel tank and it is totally silent now.
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Active Member
Originally Posted by BertRemington
When did it start?
Fuel pump is most likely source.
It started over the past year. Thanks for the reply.
Last edited by Peter Aawen; 03-04-2022 at 06:09 PM.
Reason: Fixed quote display
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Active Member
Originally Posted by Joel The Biker
fuel pump. Mine did that when I purchased it used. I put a capfull of marvel mystery oil in the fuel tank and it is totally silent now.
I have not heard of marvel mystery oil. I have tried some fuel additives but that hasn't made any difference.
Where can I find Marvel Mystery Oil. And is it recommended as a fuel additive? After that first tank (with the oil in it) was gone, did the "hum" return? Thanks
Last edited by Peter Aawen; 03-04-2022 at 06:10 PM.
Reason: Fixed quote display
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Active Member
Originally Posted by peterparker
My Spyder mechanic said that noise is the fuel pump. My bike was a 2014 RTL.
Originally Posted by happyspyder2039
As said above fuel pump is a known issue for noise
Originally Posted by canamjhb
Very common fuel pump sound. Some have been successful having it replaced under warranty but mostly it is just considered by most dealers to be "normal". Irritating sound and expensive to replace..... Jim
Thanks for the replies
Last edited by Peter Aawen; 03-04-2022 at 06:13 PM.
Reason: Fixed quote display
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Marvel Mystery Oil available at your local O'Reillys
https://www.oreillyauto.com/detail/c...ufacturer=true
123 E Shockley Ferry Rd $8.99 Open until 9pm ... and other locations.
PS I have some on hand -- will try it tomorrow.
Last edited by Peter Aawen; 03-12-2022 at 11:15 PM.
Reason: While all can see Thread Titles, Not everyone can see individual post titles! ;-/
2014 Can-Am Spyder RT-S SE6 Freeway Commuter Pod
2016 Royal Enfield Classic 500 Fair-Weather Mountain Bike
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Originally Posted by Joel The Biker
fuel pump. Mine did that when I purchased it used. I put a capfull of marvel mystery oil in the fuel tank and it is totally silent now.
This is the first I've heard of the stuff. Gets good reviews FWIW https://www.amazon.com/Marvel-Myster...0725JQXKS?th=1
2014 RTL Platinum
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Very Active Member
Originally Posted by UtahPete
I believe I first heard about it in my teens, over 60 years ago. Always thought of it as another one of those "snake oil" cures for every engine ill imaginable! But, maybe it's good stuff. I've never used it. I just looked at their website. Next year will be their 100th anniversary, so if nothing else you have to give them credit for business longevity!
2014 Copper RTS
Tri-Axis bars, CB, BajaRon sway bar & shock adjusters, SpyderPop's Bumpskid, NBV peg brackets, LED headlights and modulator, Wolo trumpet air horns, trailer hitch, custom trailer harness, high mount turn signals, Custom Dynamics brake light, LED turn signal lights on mirrors, LED strip light for a dash light, garage door opener, LED lights in frunk, trunk, and saddlebags, RAM mounts and cradles for tablet (for GPS) and phone (for music), and Smooth Spyder belt tensioner.
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SpyderLovers Ambassador
Fuel Pump Noise
Originally Posted by Joel The Biker
fuel pump. Mine did that when I purchased it used. I put a capfull of marvel mystery oil in the fuel tank and it is totally silent now.
Just wanted to know if this fixed the problem.
Do you have to use the 'Marvel Mystery Oil' on a
monthly Basis?
Or Are you saying one time an done?
Also what year and model did you do this 'MM Oil' treatment? I see you have a 2021?
ENJOY YOUR LIFE WITH A SPYDER
Ryde with a Friend and be Safe
My Spyder ..... 'Little Blue-Boy'
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I am a big fan of Marvel, I use it on a lot of things, it's a good lubricant for squeaks and all kinds of stuff!! But good luck on this fuel pump item, I find it hard to believe that it will be the cure all for this issue, it will mix into the gas like a two-stroke oil and lubricate any exposed bearings, but it will wash out after the next tank of gas!!
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Active Member
Be careful with adding oil to the gas, the cat (if you still have it) can get get clogged up if too much oil is run thru. A little would probably be ok.
Last edited by Peter Aawen; 03-12-2022 at 11:38 AM.
Reason: Punctuation & spaces - %-/
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: 2017 RTL ORBITAL BLUE
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my 2014 RTs had a noisey fuel pump. I considered replacing the fuel pump, but tried some marvel mystery oil first. It only took one treatment and the noise has not returned. It has been many thousands of miles. Read the instructions for how much to add to a tank of gas. website says 4 ounces for 10 gallons of gas. I seem to remember adding a capfull or 2. It is amazing stuff
Last edited by Joel The Biker; 03-05-2022 at 03:47 PM.
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Active Member
Originally Posted by Joel The Biker
fuel pump. Mine did that when I purchased it used. I put a capfull of marvel mystery oil in the fuel tank and it is totally silent now.
Well, I tried the Mystery Oil (in a couple tanks) and it hasn't changed the "hum". Most every one who has commented on my description of the "hum" (as I call it) thinks it's probably the fuel pump. And that sounds logical to me since the sound is consistent (which would be consistent with an electric pump ... not like old mechanical pumps which could change with RPMs)
Any other ideas welcomed.
Thanks
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Very Active Member
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Very Active Member
When you first start it, and let it warm up is it humming then, or is it humming when you put it in gear and start riding? It could be your compressor pump for your air bag! It will kick into pump mode when the bikes put into gear, if it's calling for air.
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Very Active Member
Originally Posted by BLUEKNIGHT911
... And Walmart for less $$$ .... Mike
And it smells good too..............
Two Wheelers from 1963-2011
Three Wheelers:
2011 RT(Red)
2014 RT(white)
2016 F3T(red)
2022 RT current ride(silver)
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2016 Slingshot
2018 Vanderhall
2019 Slingshot
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Very Active Member
Originally Posted by IdahoMtnSpyder
I believe I first heard about it in my teens, over 60 years ago. Always thought of it as another one of those "snake oil" cures for every engine ill imaginable! But, maybe it's good stuff. I've never used it. I just looked at their website. Next year will be their 100th anniversary, so if nothing else you have to give them credit for business longevity!
Yup, they've been around since 1923 so they must be doing something right.
Greg Kamer
"It's better to be not riding and wishing you were than be riding and wishing you weren't."
USAF, 20 years, retired
Sheriff's Office, 23 years, retired
2018 Can Am Spyder RT-Limited
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