want to balance the cbr600 1999 carbs: have purchased a 4 gauge carb balancer kit from ebay.

are these the 4 points where you attach the hoses to?

I always thought there were like coolant galleries. :/


I have blowed air through one checking to see if it travels to another opening but they dont. They seem individual gallery to each carb.

 

They are for coolant. The ports for balancing are not on the carb rail but on the engine, just below where the carb boots attach.

 

well ive just wasted £35 on the kit. damn
is there not a way to do it from the carbs.

I am using a set of bike carbs on the back of an car engine.

 

If there is a way I don't know how it would be.
you can perform a bench sync. It's not nearly as accurate as a vacuum sync but it's better than nothing.

 

How accurate are mixture screws on these carbs. For example if they are fully screwed in and then you turn them back out one full turn on each. Are thier accuracy 100%?

Just saying as noticed the screw driver slot in the screw it self seems to be in different positions to the others.

 

You only set them up like that as a starting point if you want them really dialed in properly. But some people set them up like that and leave them be.

 

So to cut the long story short, if they are fully turned in and you open them up say 2 turns out. they are more or less 90% accurate?

 

It's not really an answerable question. Every bike, every carb is different. For your model the base setting is 2 1/4 turns out for a bike that is properly warmed up. Again, some people just set it to this and are happy. As to the overall accuracy of this, these are older bikes with some wear in them.
To set it up properly, adjust the number 3 carb F/A mixture screw first until RPM no longer increases. Then back it off by 50 RPM.
Adjust RPM to 1,200 with the idle adjustment ****.
Repeat the remaining 3 carbs.