Wanted a set of these for years, you can only borrow other peoples gear so many times
Rescued attachment vacuum gauges.JPG

i hope you have one of the stable reading ones, normally shake allot with their needle.

Tks

it comes with inline restrictor valves that allow you to control the needles... my set off ebay worked fine...

FWIW when you start, connect the gauges one at a time to the same port just to check they all read about the same.

Yeah I'm a pressure calibration technician for my sins - old habits die hard

Neil

Of course you can buy the Gunsons syncroniser jobbies for about 30 quid....

OR buy some clear syphon tube, some food dye and a big bit of plywood and make your own.....

My late father used to be able to sync carbs by ear.

Many was the time that the local autotune guy could'nt improve on the settings.

He was an out an out Jag nut, Bless him.

Ronnie

I tend to do them by ear myself but offspring just can't master the technique.
in all honesty they are a bit of a waste of time because as i said to offspring you're not looking for a particular vacuum reading you are just trying to get all 4 carbs reading the same.
ther is still no substitute be it car or bike than a good old fashioned plug chop to see what the engine is doing
tony