I'm trying to synchronize my Gixxer TB:s. I have read somewhere that i
could use a hose and listen to the "swosh" in the inlet.
I can hear the swoch but i cant get it to sound exactly same on all four.

Do you guys have any tips or trix?

i use a carb balancer,cant see any on flea bay at the mo,spose they are a bit old skool now

you could always buy the following



ebay

Done my Kawasaki T/Bs using a single vacuum gauge , don't even have to take the air filter off to do it. A set would be easier/quicker but not worth the expense

What you really want is one of these they are much more accurate and cheaper too than the dial gauges.

Whats wrong with using a length of rubber hosing and your ear like we used to do it when setting up a pair of twin forties?
It's locost that for sure and does the job too.

I used an old bottle cap, similar to a gearbox oil lid but bigger, with a piece of tub attached.

This captured all air going into the TB and was then fairly easy to get then match. One of these days I will borrow a proper carb balancer to se how close I got.

Tell me more Tangoman.

I have tested the rubber-hose-ear-thing and i really can't get it right.

Micael,

It is just a case of finding something to block off all other air entry into the TB except for that which is sucked through your tube.

Once you have captured all the intake air, it is easier to match the sound of them all.

I'd add a vote for carbtune......
Cheap considering that properly sync'd carbs can save petrol (therefore money) and provide extra ponies.......

I just used an old fashioned synchrometer...

You could knock up a locost manometer from a board of wood, a few p-clips and a decent length of clear washer tubing. Fill it with coloured water/antifreeze, make sure it's tall enough and has a long enough tube going to the tb that the liquid won't get sucked into the engine, and robert's your mothers brother

I have a Pitot tube somewhere.
It might come in use for this. I'll let you know my findings.

Pitot tube info
http://www.flowmeterdirectory.com/flowmeter_artc/flowmeter_artc_02111201.html