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Is this Speedo actually from a GS?

free99 said:
Hey LAB3, unfortunately the speedo is spinning around 2x the actual speed (I can do tests and tell you exactly if it'd help). I just wish I knew what year/model bike this speedometer came off of and I'd simply swap that gear in on the front wheel of my 450. :smilet-digitalpoint
Click to expand...

Ooops, wrong guess!
 
Bought my bike with 7200 original miles on it and have close to 33k now. In that time I've broken the original speedo cable and replaced it and two different tach cables as well. I've made sure that my routing and lubing are done properly and despite my best efforts the needles are jumpy and keep breaking cables.

As mentioned, my understanding is that the speedos all run at the same ratio, 2260 turns of the cable at 60mph. Since your problem popped up I've spent a good part of the last day trying to figure out why yours didn't work not only to help answer your question but mine as well: What will be my best replacement option or long term permanent fix.

Buying a used set of gauges pretty much leaves me where I started and with a NOS speedo going for $265 that really isn't a ligical option on what is essentially a bike that's worth $1200. The best conclusion I've come to is to ditch mechanical speedos altogether and go with either digital or GPS. Unfortunately this doesn't answer your question but it's the best option I can see.
 
OK, great news: Turns out LAB3 was right, the stock speedo drive works!

The problem was due to preloading the mechanism a little too much to keep the needle at zero, the measured speed was always off. But once I compared to a GPS speedometer, I noticed the consistent difference, and now all the speeds are pretty close to correct once I got the preload right.

Can't be spot on, otherwise I'd have to honestly answer that I did know how fast I was going.
 
free99 said:
Hey folks,
I managed to completely f@#$@#$k up the insides of the speedometer on my GS450L by staying above 80mph for too long, the spring that returns the needle back to zero is now a gordian knot.

I bought a replacement off ebay with a higher top speed, seller said it was for a GS450 and other models but the diameter is a bit larger than the original. I'd like to find a black cover as well as the chrome end piece for it. Any ideas? Original part numbers for my bike were 34151-45300 and 34193-45300, respectively.




For this new meter, OD is ~93mm for the white plastic, spacing between the mount pins is 76.5mm, speed goes up to 140mph/220kph and it has two holes to plug lights into vs the original one.

Does anyone know what the new end cap and cover part numbers would be for this gauge? Thank you, and stay healthy!
Click to expand...

did you see if the cable was tightened on before you bought a different speedo, like tightened all the way?
 
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