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Dancing or jumping spedometer needle

  • Thread starter Thread starter Steel Toed Tank
  • Start date Start date
S

Steel Toed Tank

Guest
My first thread!
Anyways, I recently installed a new Parts Unlimited spedo cable and now the needle bounces a lot.
If I'm doing 100kmh it will bounce back and forth between 90-110. Sometimes it it doesn't bounce at all and just does what it's supposed to.
I tried a few things to see if I could make it bounce or stay steady, but there seemed to be no correlation between what I was doing and the spedos behavior.
The Spedo was NOT working when i bought the bike so I don't know how long it's been doing this.
Is it something simple like oiling the line?
Is there something wrong with the new cable?
Are these bikes prone to this?
Is my spedo about to grenade on me?

Any help from you wise and knowledgeable gentlemen would be appreciated.


Tank
 
Welcome, biker!

Welcome, biker!

An intelligent question from a newbee, wow!

Yes, the gage needs to be taken apart and the bearings lubed.

How? Well it don't unscrew neatly like with most other bikes.

You have to carefully pry & bend the edges of the steel from around the side of the body where it folds over the plastic back, until you can pull it apart.

When you got it lubed and cleaned, put it back together and tap down the metal, back into it's original shape.

Wait 30 years before repeating this procedure.

Bill
 
AND I used the heck out of the search function before posting my question, lol.
I'm one of the "wise old sages" on a forum of a very different nature and as such I understand all too well the "whats the least I have to do to get PRO results like you guys" mentality.
I know how frustrating it can be to always have to ask, "where are you, whats your set-up, what have you done to it so far, etc etc before being able to offer any help.

Thanks for your answer, I know what I'll be doing today!


Tank
 
Before you tear the speedo apart pull the trip reset out and spray some WD40 in there, then go for a run. You might get away with it.
 
Did you lube the cable before you installed it? This is a requirement, btw.
 
allojohn said:
Before you tear the speedo apart pull the trip reset out and spray some WD40 in there, then go for a run. You might get away with it.
Click to expand...

Already have it off the bike.
I can't figure out how to get it open though.
I'll have a go at lubing it.

koolaid_kid said:
Did you lube the cable before you installed it? This is a requirement, btw.
Click to expand...

No, no I didn't.
Suppose I will now though.
I'll take it for a spin and let you guys know.



Tank
 
Shot a few squirts of PB Blaster into the one on the 77 750 when i got it from the hole the cable goes in. It would work but it was really slow on response. A few miles later it was moving as one would expect. Since they are off the bike, give them a little lube down below as well.
 
Yup, smooth as glass now.
I put a drop of oil down the cable hole on the back of the spedo and a few drops into the cable and slid the long spring back and forth through it.
Just went for a ride through the whole range of speeds and it worked perfect.
Thanks a lot everyone!!
I love this place.


Tank
 
Beats the heck out of taking the speedo apart, doesn't it?
BTW, most of us learn by experience, so don't think you are the first person to install a new cable without lubing it. ;)
 
koolaid_kid said:
Beats the heck out of taking the speedo apart, doesn't it?
BTW, most of us learn by experience, so don't think you are the first person to install a new cable without lubing it. ;)
Click to expand...

I didn't see an easy way to get it apart, that's for sure.
One of the best things about GSR, learning from others experiences (mistakes), lol.

chuck hahn said:
I lube them by removing the core and rubbing some grease along the entire length.
Click to expand...

Oil was all I had on hand, but grease is on the shopping list now.



Now that the spedo is so smooth and steady, I noticed my tach wiggles ever so slightly, so it's going to get oiled too.
And the other cables as well, while I'm at it.


Tank
 
Last edited:
Little lube on the lever hinges, the cable end at the clutch lever, oil the foot brake lever where it passes thru the frame. A drop or two on the side stand hinge and the center stand hinges.
 
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