andy188
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| posted on 15/2/11 at 07:42 PM |
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carb balancer
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
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whitestu
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| posted on 15/2/11 at 07:54 PM |
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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
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mcerd1
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| posted on 15/2/11 at 07:59 PM |
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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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Surrey Dave
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| posted on 15/2/11 at 10:16 PM |
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Can Be Messy!
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I've tried that , it's very fiddly , spectacular and messy if you get it wrong!!
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matt_gsxr
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| posted on 15/2/11 at 11:20 PM |
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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
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matt_gsxr
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| posted on 15/2/11 at 11:21 PM |
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quote:
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]
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).
Matt
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mcerd1
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| posted on 16/2/11 at 08:24 AM |
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quote:
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).
you just need a 'really' long bit of pipe then
or more liley some heavier fluid (although you'd need to be careful what you picked just incase it did get sucked in)
but the theory is sound and its very locost - look up 'manometers' if you bored
[Edited on 16/2/2011 by mcerd1]
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Surrey Dave
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| posted on 16/2/11 at 01:34 PM |
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Theory
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.
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Craigorypeck
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| posted on 16/2/11 at 04:23 PM |
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A synchroniser works well too..
CARBURETTOR SYNCHROMETER BALANCER WEBER DCOE/DCNF/IDF on eBay (end time 08-Mar-11 22:09:10 GMT)
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davebic
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| posted on 22/2/11 at 04:26 PM |
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carb balancer
Hows that work then....do you just stuff it in the inlet trumper?
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Craigorypeck
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| posted on 22/2/11 at 04:33 PM |
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Yip. measures airflow
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David Jenkins
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| posted on 22/2/11 at 05:13 PM |
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I used one of those puppies... easy, and pretty accurate.
[Edited on 22/2/11 by David Jenkins]
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prawnabie
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| posted on 22/2/11 at 05:17 PM |
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I have a weber type carb synchroniser for sale if anyones interested £10 + post
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mcerd1
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| posted on 22/2/11 at 06:02 PM |
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quote:
Originally posted by prawnabie
I have a weber type carb synchroniser for sale if anyones interested £10 + post
me !
despite my posts above, I've not got any take off points to try a DIY on  (and I don't fancy adding any - its all polished! )
u2u sent
[Edited on 22/2/2011 by mcerd1]
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