Gauges for Naked Conversion

Maintenance, repair, troubleshooting, etc.
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radare
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Mon Jul 23, 2012 1:14 pm

I am currently installing a set of Radian (YX600) gauges on my XJ600. The Radian speedometer works with the XJ600 sender & cable and the Radian tachometer works with the XJ600's tach signal.

Radian gauges are difficult to find and when available, the red on the face tends to be faded out.

Yamaha made several other bikes that had speedometers which will bolt into the Radian cluster and that are more readily available. Here's what I've found (note that the max speed shown on the speedometer varies depending on the bike):

YX600 (Radian) gauges:
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XV535 (Virago 535) Speedometer:
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XV1100 (Virago 1100) Speedometer:
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VMX1200 (V-Max 1200) Speedometer:
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FZX700 (Fazer) Speedometer:
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I actually really like the looks of the XV535 speedometer as the blue is very similar to the XJ600N gauges and I don't think it'd look bad being missmatched from the tach.

Because these bikes all share different size front wheels from the XJ600, there will be some error shown on the speedometer. Here's my estimation on the accuracy of these different speedos. The Radian and Fazer speedometers are the closest to the stock XJ600 speedometer:

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So that's it; depending on what you're looking for, and if you have the Radian cluster already, here are some options for speedometer replacements that might have better faces.

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sdimick
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Mon Jul 23, 2012 4:53 pm

How did you like the digital gauge? I found one that has a digital speedo display and a analog gauge style rpm but it is only 100 bux. Im afraid to buy it.
-One Off Xj-

My build thread:
viewtopic.php?f=12&t=856

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mikee112
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Tue Jul 24, 2012 12:02 pm

Thought you all might like some referance photos, of the "N" gauges, the idiot light cluster on the Radion gauges is almost exactly the same, slightly different layout ( the oil light on the xj is in the tacho )
The Virago speedo is remakably similar to the xj unit, same colour face,but only goes to 115mph

sorry for the reflection of my Fat carcass, chrome is sooooo unflatering :huh:

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mikehofmann21
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Thu Jul 26, 2012 8:50 am

Mike112. What kind of gauges are those?

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Casper
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Thu Jul 26, 2012 12:10 pm

mikehofmann21 wrote:Mike112. What kind of gauges are those?
Those would be actual XJ600N gauges.
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cafe_bill
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Thu Jul 26, 2012 10:25 pm

Because these bikes all share different size front wheels from the XJ600, there will be some error shown on the speedometer. Here's my estimation on the accuracy of these different speedos. The Radian and Fazer speedometers are the closest to the stock XJ600 speedometer:
I'd be willing to bet that as long as you use a Yamaha speedometer it will be fully accurate. Mechanical speedometers are all made to a few specific ratios, the most common are 1:1, 2:1 and 2240:60. I don't know which Yamaha typically uses, but I'd bet all their mechanical speedometers use the same ratio.

The differences between individual bikes and the various size tires is made up by the speedometer drive down at the wheel. It's common to have to change out the drive unit if you change front tire sizes.

So as long as you're using the correct speedometer drive for the tire size you're using, the speedometer itself should read accurately.
Bill
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Super-Mario
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Thu Aug 09, 2012 8:14 pm

Can you use the radian top triple as well, or do you have to source a xj600n yoke? Theyre hard to find.
-Mario

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radare
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Thu Aug 09, 2012 9:42 pm

Super-Mario wrote:Can you use the radian top triple as well, or do you have to source a xj600n yoke? Theyre hard to find.
Neither option is good. The Radian uses 36mm forks, so it's triple will not work. The XJ600n will work, but after '98, it uses 41mm forks, so you have to find a '94-'97 triple.

The FZX700 (Fazer) triple will bolt up and will work with the XJ forks. The problem with this one is that it has additional fork offset resulting in reduced trail. I estimated it would reduce the trail by 20mm. I have a complete FZX triple if you want to give it a shot.

Otherwise, the best option is to make your own gauge mounts, similarly to the headlamp mounts.

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Super-Mario
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Thu Aug 09, 2012 10:23 pm

Ok, I will be on the lookout for a 94-7 N tree then. I really like the setup of the radian gauges, and they would be hard to mount without the premade mounts like on the radian, xjn triple. I think RD scored a xjn mount from Englands ebay, Ill keep an eye out there. Thanks for the info!
-Mario

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radare
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Thu Aug 09, 2012 10:35 pm

Super-Mario wrote:Ok, I will be on the lookout for a 94-7 N tree then. I really like the setup of the radian gauges, and they would be hard to mount without the premade mounts like on the radian, xjn triple. I think RD scored a xjn mount from Englands ebay, Ill keep an eye out there. Thanks for the info!
I'm working on making mounts for mine, using the tubes that support the headlamp. Much more cost effective than trying to track down an XJN triple:

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