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Simple Device for Carburetor Tuning

Posted: Sun Jun 28, 2020 4:20 am
by Micha
Please see a video link:

https://youtu.be/4iFfDoK5kwc

Would love to know what’s the device name?
And is it accurate?
I would like to purchase such.

(Edit: changed the link to correct video.)

Re: Simple Device for Carburetor Tuning

Posted: Sun Jun 28, 2020 6:37 am
by schrader7032
At the bottom of the video is says "MOTOMETER syncro test tool". I googled that and find them out there on the web. There are many versions of these things, pricey and cheap:

- TwinMax
- Colortune
- Carb Balancer
- Mercury Carb Stix
- EMPI Vacuum Gages

What about making a liquid manometer? http://obairlann.net/reaper/motorcycle/manometer.html

Balancing the carbs can also be done by using your ear and a screwdriver to short the plugs out. The idea is to get each cylinder to pull the same RPM when running by itself.

Re: Simple Device for Carburetor Tuning

Posted: Sun Jun 28, 2020 10:54 am
by skyler.robbins
Found this picture on FB..
Rather than drilling into your carbs to install a barbed test point, do it in the spacer.

Re: Simple Device for Carburetor Tuning

Posted: Sun Jun 28, 2020 11:10 pm
by The Plunger
Just get one EMPI.
Brian

Re: Simple Device for Carburetor Tuning

Posted: Mon Jun 29, 2020 12:40 am
by Micha
Thanks a lot.

Brian - what do you mean by "Just get one EMPI" ?
I'm sorry - could not understand what you mean. Pls explain.
Thanks.

Re: Simple Device for Carburetor Tuning

Posted: Mon Jun 29, 2020 6:20 am
by schrader7032
Since I brought the term up, here's what I meant by EMPI:

https://www.amazon.com/Empi-Universal-C ... B0075AW6CI

You can use the search term in the upper right (hey, it works now!!) and search for it on the forum...been discussed before.

Re: Simple Device for Carburetor Tuning

Posted: Mon Jun 29, 2020 8:53 am
by FL54
The EMPI synchronizer is reasonably priced and works well. Especially for those of us who can’t synch by ear.