Speedo stuck

[Green1]

when't for a run on the bike today and thought my reaction time had vastly improved as I seamed to be making good progress
until I came across a land rover defender trundling along.I glanced at my speedo and realized its stuck at 80.
Needle still moves but now it reads 80 at a standstill and rises up to 120+ 

[Lecram]

It could be that the needle came loose from the shaft. The best way to check what's wrong is to open the gauge and fix it.

[Green1]

The needle did indeed come loose it fell off today on my 115 mile trip.I hate pulling clocks apart still got to do them on the other bike.  But now I have a more serious problem the bike shakes the bars so much it tries to tear my arms off.The front forks have almost no rebound so it jumps and skips over bumps

[Lecram]

The needle did indeed come loose it fell off today on my 115 mile trip.I hate pulling clocks apart still got to do them on the other bike.  But now I have a more serious problem the bike shakes the bars so much it tries to tear my arms off.The front forks have almost no rebound so it jumps and skips over bumps

Is the center nut of the triple tree also loose?

Regarding your tacho: I am specialized in repairing CB750 gauges. I have a special tool to close the gauge after removing the crimp ring. So if you want, I can do that for you and if the face plate is worn or faded, I supply high quality face plates as well.

[Green1]

The nut is tight but the springs are past there were limit so hopefully it's just worn springs
Can you stop the speedo from jumping erratically
I probably bought the face plates from you.   

[steff750]

  i have opened k0 clocks no problem as they are plastic not metal ,and i do recall having erratic needles either in speedo or tacho a very long time ago ,anyway whenever i open my clocks for whatever reason i always give the mechanism inside a good spraying of WD40 it done the trick for me . and if you cant put it back together you might consider sending them to lecram then

[Lecram]

The nut is tight but the springs are past there were limit so hopefully it's just worn springs
Can you stop the speedo from jumping erratically
I probably bought the face plates from you.

I have sold over thousand face plates all over the world, so you could be a customer of CB750faces.com  I only know your nickname here at this forum.

I can repair the jumping needle, no problem. I have done dozens of these gauges. All vintage CB750 gauges bounce, even NOS gauges. I have never opened a gauge with a proper damper. All dampers were (almost) empty. If the gauge is already open, it's a good opportunity to refill the damper.
WD40 is not the right stuff to repair the damper. It could work a while, but it will start jumping again after a short time.

[Bitsa (Ralph Wright - RIP)]

Are you the same people I asked to revamp my k6 clocks that you promptly relplyed Cant do anything past a k2?

[Lecram]

Are you the same people I asked to revamp my k6 clocks that you promptly relplyed Cant do anything past a k2?

Hi,

I can do the K6 gauges, but do not have replacement faces for these gauges. Ik have restored a set for a Dutch guy two months ago and he is very happy with the result.

[Green1]

Can I ask what you fill the damper with or is it a trade secret
 
I will be buying another set of faces for a k1 as the other ones I bought were excellent.
 

[Lecram]

Can I ask what you fill the damper with or is it a trade secret
 
I will be buying another set of faces for a k1 as the other ones I bought were excellent.

Thanks.

I fill the dampers with silicone oil with a viscosity of 50,000. That's often used to fill the diffs of RC cars. I use a syringe with a 1.2mm needle which I shortened to about 1cm. So noting secret about this 

Be very careful when you refill the damper pot. It's easier to damage the fragile parts than repairing those.

[Green1]

Do you fill the damper pot to the top
Cheers

[Lecram]

Do you fill the damper pot to the top
Cheers

No, a few mm under the top. When you put the cylinder back into the pot, the oil must stay in the pot. If it comes out of the pot, pull the cylinder out, remove the overflowing oil and put the cylinder back.

[Lecram]

Are you the same people I asked to revamp my k6 clocks that you promptly relplyed Cant do anything past a k2?

I will have the K6 face plates soon in my online store. Do you still need those?

I  also restore K6 and F1 gauges, both miles and kilometers

[Bitsa (Ralph Wright - RIP)]

Hi Lecram,

At this moment I do not need new faces as I did find some nos clocks.
Saying that the speedo sometimes sticks at 90 to 100 kph which is OK as I do not go much faster than that I like to see the countryside here.
If this starts to annoy the hell out of me can you repair it?
Many thanks
Bitsa