SOHC.co.uk Forums > CB750

Speedo stuck

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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:

--- Quote from: Green1 on September 22, 2012, 06:01:42 PM ---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

--- End quote ---

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.   

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