Hi,
running 2.0l zetec on cbr600 bike carbs,
trying to set my cbr600 carbs up,
should i get a single balancer guage or 4 off gauges, pros and cons please?
idle screw how far out, have read 3 turns, not sure if thats applicable to all carbs?
main jet size, have read on hear these should be about 1.4 m/m for this size of carb?

thanks
Andy

In my opinion the best balancers are the Morgantune ones - I have a set with 4 seperate gauges and they work great.

My zx6 carbs have 1.6 mm jets and 2.5 turnms on the idle screw [though the car idles fine anywhare from 1-4 turns.

You really need a wideband lambda to set them up reasonably well.

Sty

or just 4 lengths of clear tube joined together at the bottom
a bit of wood
some oil or even water and food colouring




http://www.youtube.com/watch?v=0nKaGEMLZjs

a bit fiddly but very locost


[Edited on 15/2/2011 by mcerd1]

[Edited on 15/2/2011 by mcerd1]

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I've tried that , it's very fiddly , spectacular and messy if you get it wrong!!

You need at least a pair of gauges. As when you do the adjustments it is near impossible not to affect the engine speed, which changes everything.

With a pair of gauges you can adjust adjacent bodies and get them to match, and then move the gauges onto the next pair. I used to have a set of 4, but broke 1, 3 works fine, and do the trick where I move the connections.

If you search "carb* sync*" on the well known auction site... I have some cheap blue ones which seem to work fine.

Matt

quote:

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Originally posted by mcerd1
or just 4 lengths of clear tube joined together at the bottom
a bit of wood
some oil or even water and food colouring




http://www.youtube.com/watch?v=0nKaGEMLZjs

a bit fiddly but very locost


[Edited on 15/2/2011 by mcerd1]

[Edited on 15/2/2011 by mcerd1]

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quote:

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Originally posted by matt_gsxr
I tried that too and sucked a load of fluid into my engine! This trick does work but only if the balance is reasonable to start off with (mine wasn't).

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Yes the theory is sound but the time involved fiddling to get it just right is probably not worth it, I think you can use fishtank accessories, like valve to shut off or adjust the amount of vacuum and lessen the dramatic range encountered when starting an engine and to smooth out the pulses.

I think I tried coloured water , then thin atf type oil.

But would obviously be very accurate once mastered.

A synchroniser works well too..

CARBURETTOR SYNCHROMETER BALANCER WEBER DCOE/DCNF/IDF on eBay (end time 08-Mar-11 22:09:10 GMT)

Hows that work then....do you just stuff it in the inlet trumper?

Yip. measures airflow

I used one of those puppies... easy, and pretty accurate.

[Edited on 22/2/11 by David Jenkins]

I have a weber type carb synchroniser for sale if anyones interested £10 + post

quote:

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Originally posted by prawnabie
I have a weber type carb synchroniser for sale if anyones interested £10 + post

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