Author Topic: Speedo cable quacking sound.  (Read 4692 times)

insane2170

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Speedo cable quacking sound.
« on: June 12, 2014, 04:49:05 PM »
Hi!,

Recently found a hidden bike at our Victoria BC Rally and it turns out to be an 07 lc Super 9!!!
I added a techni gas pipe, malossi 70cc bbk, and some sweet lighting!

Here's my problem. When I ride there is a little bit of play in the speedometer cable causing a rubbing between the metal cable itself and the outer plastic casing. If I could somehow keep the cable pulled up into the HUD display the sound would go away.
This isn't something that is broken but more of a common engineering problem from what the Canadian Kymco importer tells me.

Has anyone found a working solution to this?

-Lubing with graphite.
-Gluing/taping around either end to stick the cable in place.
-Adding some type of spacer to either end to push up the cable.

Thanks for any useful advice and access to this forum!

Stig / Major Tom

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Re: Speedo cable quacking sound.
« Reply #1 on: June 12, 2014, 07:12:11 PM »
Hi!,

Recently found a hidden bike at our Victoria BC Rally and it turns out to be an 07 lc Super 9!!!
I added a techni gas pipe, malossi 70cc bbk, and some sweet lighting!

Here's my problem. When I ride there is a little bit of play in the speedometer cable causing a rubbing between the metal cable itself and the outer plastic casing. If I could somehow keep the cable pulled up into the HUD display the sound would go away.
This isn't something that is broken but more of a common engineering problem from what the Canadian Kymco importer tells me.

Has anyone found a working solution to this?

-Lubing with graphite.
-Gluing/taping around either end to stick the cable in place.
-Adding some type of spacer to either end to push up the cable.

Thanks for any useful advice and access to this forum!
"Quacking" scooter- Cool!!
Could we get a video..... with sound --of this?!

(I would not fix this if I were you......too cool  :) )
Boston Strong
Rural Ohio

And, I'm feeling a little peculiar.

zombie

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Re: Speedo cable quacking sound.
« Reply #2 on: June 12, 2014, 11:17:01 PM »
There is a teflon sleeve inside the cable sheath that is worn thru. What you are hearing is the core rubbing into the metal casing of the sheath.

Just replace it, and save the old core.

Please do make the vid. I want to hear it "quack" too
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

wordslinger

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Re: Speedo cable quacking sound.
« Reply #3 on: June 13, 2014, 12:07:12 AM »
..my front suspension is making more of a ..not quack, but more of a goose ..honk sound..

..I've lubed the front shock rods..didn't help...so, before I pull off the plastics, any idea what it might be?
..every mod (action) necessitates a (reaction) mod..

zombie

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Re: Speedo cable quacking sound.
« Reply #4 on: June 13, 2014, 05:13:13 AM »
I wanted to put up a "your mom" joke but...

Its water inside the rods at the bottom. Say hi to mom.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

insane2170

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Re: Speedo cable quacking sound.
« Reply #5 on: June 13, 2014, 05:40:15 AM »
So I went and replaced the entire speedo cable and it still quacks.

Kymco guy was calling me a stupid cow for buying it in the first place since he had told me it wasn't the cable.

Seems like it would be the speedometer port in the HUD somehow.

zombie

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Re: Speedo cable quacking sound.
« Reply #6 on: June 13, 2014, 05:44:38 AM »
So I went and replaced the entire speedo cable and it still quacks.

Kymco guy was calling me a stupid cow for buying it in the first place since he had told me it wasn't the cable.

Seems like it would be the speedometer port in the HUD somehow.


You actuallyshould have KNOWN if the noise was from the cable or the speedo. It's a magnetic cup that spins around a pick up in the cluster.

That was a quick purchase by the way... I don't believe it. Just sayin'   Mooooo
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

insane2170

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Re: Speedo cable quacking sound.
« Reply #7 on: June 13, 2014, 05:49:23 AM »
It's a magnetic cup that spins around a pick up in the cluster.

Can you clarify? so the cup is spinning and somehow causing the sound?

Can't I just open it up n spray it all with jigaloo or graphite?

zombie

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Re: Speedo cable quacking sound.
« Reply #8 on: June 13, 2014, 07:10:33 AM »
The end of the cable slides into an actual "cup" shaped steel piece. That "cup" is supported in a plastic housing that usually has a teflon bushing.
The Cup spins with the cable at the same rpm. Inside this cup sits a ferrite magnet that is directly connected to the speed needle.

That magnetic field tries to "grab" the cup but cannot so what happens is the magnets weight keeps it stationary or barely stationary, and the faster the cup spins the further the needle moves before slipping.

If the noise is in the cluster then it MUST be at the cup or the cups bushing. The needle assembly barely moves.

I used to repair auto speedos for AC Delco YEARS ago. When the cup "Growled" I had to replace the entire plastic housing. I don't know about lubing them as a long term repair.
« Last Edit: June 13, 2014, 07:13:21 AM by zombie »
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

insane2170

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Re: Speedo cable quacking sound.
« Reply #9 on: June 13, 2014, 07:18:15 AM »
Ok well I opened up what I could of my speedo housing just now and made things worse.

I lubed the outside of the cup and inside the needle housing with jigaloo.

Now it says I go 80 when I do 30...and quacks.

Yay me, looking for a new or used assembly.

zombie

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Re: Speedo cable quacking sound.
« Reply #10 on: June 13, 2014, 07:47:19 AM »
I'm sure you can fix it w/ some time to figure what it does. The cluster is still available, and I would suggest NEW. The used ones will not be far behind yours.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

insane2170

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Re: Speedo cable quacking sound.
« Reply #11 on: June 13, 2014, 07:51:34 AM »
I have a couple Honda dio speedometers with the same cluster types.

Many parts are cross compatible with super 9s.

I will try a transplant tomorrow.

Stig / Major Tom

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Re: Speedo cable quacking sound.
« Reply #12 on: June 13, 2014, 12:45:36 PM »
I'm sure you can fix it w/ some time to figure what it does. The cluster is still available, and I would suggest NEW. The used ones will not be far behind yours.
Mr Z,
I am the new owner of a Cyclon BigByte 50ccXRTZ-2....So, to save many $$$'s on derestricting my pink bike I can gain 50 MPH by replacing speedo cable like this person?! YES? This is great news.!! Part # please for speedier speedo?
Bubba's Kid, Orlando
Boston Strong
Rural Ohio

And, I'm feeling a little peculiar.

insane2170

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Re: Speedo cable quacking sound.
« Reply #13 on: June 13, 2014, 10:44:24 PM »
Ok so I don't know what the above post is about and why people have to jack my thread but for those in the future  who own a Kymco Super 9 or have a quacking scooter the solution is as follows.

1. Remove the front axle bolt and axle.
2. Slide the speedo cable boot out from the wheel.
3. Add 2$ of grease all up inside that ..thing*
4. Reassemble everything.

* You might be missing a thin gasket on the inside which is why the speedo *tumbler is moving in and out a bit.

So I spent 350$ learning this 2$ lesson after messing up a speedometer unit and buying a new cable for nothing.
All it needed was grease and maybe the thin gasket which was missing inside the boot.

zombie

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Re: Speedo cable quacking sound.
« Reply #14 on: June 13, 2014, 11:13:48 PM »
glad you figured it out.

The way I got my bike above 80 was to simply paint a copy of the needle at 82MPH. Once I was around 30MPH (top speed) I looked down, and low and behold I was actually hitting 82MPH.
It works every time as long as you know exactly when to look.
It's cheaper than a second hand cable too Buba's Kid.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

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