Topic: anyone every try this manometer?

[neudl]

I'm just curious if anyone has an experiece with this type of manometer?  good, bad?


http://cgi.ebay.com/ebaymotors/Carburetor-Synchronizer-carb-sync-Gauge-CB550-CB650-EMG_W0QQcmdZViewItemQQcategoryZ43991QQihZ025QQitemZ380033888794QQrdZ1QQsspagenameZWDVW

[feliz]

I have it!! It's OK but not great, worst thing is the rubber hoses on mine were very cheap, when I got them they were cracked and didn't fit properly but I replaced the rubber with really good medical quality clear and very stretchy hoses and it's okay now. My gauges also go out of calibration every time I blink. I guess you get what you pay for.

[Tower]

By way of comparing to the one in my attached pic,  that I built from component pieces...

• Individual gauges from Canadian Tire stores $40 ($120 set of 4)
• Carb extensions from Honda $57 (individually cost $22 - $24)
• Vinyl line and plastic valves from Super Pet (Aquarium section) $8 - $10
• I cut the one large diameter tube included with each gauge to make the 4 tube-extension adapters $nil
• Backing and stand from waste material around the shop $nil, otherwise $15 to buy

Quality is high - works great

[bozo4onion]

IMO the best deal out there is the Morgan Carbtune Pro. Just bought mine and it will be delivered from England to my door for $114. BTW I just saw a 18 month old USED Morgan Carbtune II (previous model) sell on eBay for $136 +ship. eBay is (usually) a sellers market and most everything you see on the bay can be found cheaper elsewhere. Unless of course it cannot be found elsewhere. Motion Pro has a good one too I hear.

[NickC]

I actually just bought that one, will let you know results when i get it.....

[BobbyR]

I bought that one from Z1 and it works fine. I install one fittong into eithe #1 or #4 and in turn hook each guage to that fitting. I adjust each guage so that they all read the same on that one carb. Then I hook it up normally. What I am looking for is that all neeldes read the same when I am done adjusting.

[Steve F]

I have it!! It's OK but not great, worst thing is the rubber hoses on mine were very cheap, when I got them they were cracked and didn't fit properly but I replaced the rubber with really good medical quality clear and very stretchy hoses and it's okay now. My gauges also go out of calibration every time I blink. I guess you get what you pay for.

Ditto on all that, I have one too.  Using a vacuum generator that uses compressed air, I go through the trouble of calibrating them so they're all exactly the same by using a manifold and giving them all the same vacuum, and adjusting the little calibration screws.

[cafe750]

I've got one of those too, and it works well.

[brianzenk]

I used a set of these two weeks ago on my cb550 K 1976
and they worked perfectly. When the guages arrived I had to 0
them out which is easy to do. I took my bike to VME in seattle
and I did get comments on how smooth the engine sounded.
It took a while to fine the sweet spot where everything balanced out.
The biggest battle I had was the lock nuts.  The Vaccume generator
is a good idea before I do this again. Tell me more about it and who might
have one ?

[NickC]

Would using a hand vacuum pump work to calibrate it? I don't see why not....

[TwoTired]

Would using a hand vacuum pump work to calibrate it? I don't see why not....

I use a hand pump to set all the needles at the same point when deflected.  True calibration would verify the vacuum and pressure deflections match a known source.  I really only care that the gauges read the same when deflected.

Cheers,

[eldar]

Steve can you describe better how you do it?

[feliz]

eBay is (usually) a sellers market and most everything you see on the bay can be found cheaper elsewhere.

Yup, I was just looking at some tank mounting rubbers going for nearly three times what I pay at my dealer. I always see petcocks going for more than Honda charge.

[cleveland]

IMO the best deal out there is the Morgan Carbtune Pro.

I'll second that!  I paid $135 shipped a while back and decided it was better the buying a $50-$75 and finding out I don't like it.  Everyone I have spoken to about the Carbtune has nothing but good things to say.

[Steve F]

Steve can you describe better how you do it?

I have a vacuum generator that makes vacuum through a venturi effect when compressed air is passed through it.  Varying the air pressure will increase or decrease the vacuum.  From the generator, I hook-up a 4 outlet manifold to connect all 4 gauges to, and then use the screws on the gauges to adjust so they're all the same.  As TwoTired mentioned, this isn't a "true calibration" but it gets them to respond to read all the same values.  These gauges are fine, but a little big and awkward to balance on your handlebars while trying to sync the carbs.  I got my money's worth out of them for sure.