Need advise on buying carb sync gauges

[fwwrcpg]

Looking to buy some gauges off EBay. Will be doing a 83 gs1100L and a 78 yamaha 650 special. And a GS 850L

What is the best ones?
Thanks in advance.

http://cgi.ebay.com/ebaymotors/Carburetor-Synchronizer-Tool-carb-sync-gauges_W0QQcmdZViewItemQQcategoryZ34284QQihZ004QQitemZ140034220935QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/Carburetor-Synchronizer-Motion-Pro_W0QQcmdZViewItemQQcategoryZ50462QQihZ007QQitemZ170031540588QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/Vacuum-Carburetor-Synchronizer-carb-sync-Gauge_W0QQcmdZViewItemQQcategoryZ35597QQihZ011QQitemZ320002369373QQrdZ1QQsspagenameZWD1V

[8trackmind]

Only one choice. Morgan carb tune.

[Nessism]

I made my own sync tool using vacuum gauges hooked up to a plenum to damp out the needle oscillations. I wonder how those other gauges damp the motion. In the gauge itself?

[jpaul]

I have a similar set that I got from JC Whitney. Works fine; to dampen the needle movement, there are small valves on the lines. You just close them off just enough to restrict the air movement, and the needles settle down. This winter I plan to make a manifold that I can hook it up to in order to check that all four gauges are reading the same.

[Dunkin]

Suzuki carb sync. tool

I bought the factory suzuki gauges. They can be found by part number in any of the repair manuals. They are a bit expensive but they work really well. I found that by friendly conversation with my local suzuki parts counter guy I was able to buy them for 10% over cost, a savings of over $100.00 over the standard cost quote. I think I ended up paying about $300. canadian. This ask and you shall get discount seems to work for all parts and tools as I just bought a factory stator, reg./rect, and ignition coils and have saved a bunch. Of course, aftermarket stuff will still always be cheaper but, I think factory stuff generally is still the best if you want it to run like new.