Carb balancing the easy way

Ok so I wanted to balance my carbs yesterday.

I have the balancing tool & everything else needed.

SO I removed the airbox - looked at the front vacuum connection on the carb -

No way I was going to fiddle with this!


Here is what I did:

When I looked closely at the carbs I noticed that there is a fuel stream around the pins. (The front one had a lot stronger stream than the back one)

The adjustment screw needed 2 full turns - then the fuel stream looked the same on both pins.

Tested the throttle response - what a difference.


So I was happy with that & put it all back together.

The bike feels a lot more responsive again.

I know it's not 100% accurate balanced but it's close enough for me

I have no idea what you are on about/have done!!

well neither do I but it worked

[Viney]

Originally Posted by PatrickUK

Ok so I wanted to balance my carbs yesterday.

I have the balancing tool & everything else needed.

SO I removed the airbox - looked at the front vacuum connection on the carb -

No way I was going to fiddle with this!


Here is what I did:

When I looked closely at the carbs I noticed that there is a fuel stream around the pins. (The front one had a lot stronger stream than the back one)

The adjustment screw needed 2 full turns - then the fuel stream looked the same on both pins.

Tested the throttle response - what a difference.


So I was happy with that & put it all back together.

The bike feels a lot more responsive again.

I know it's not 100% accurate balanced but it's close enough for me

So what you have is a curvey? You took the airbox and saw the fuel coming out around the needles, you adjusted the screw so that the fuel coming out was equal? Fair enough, but this is not what carb syncing is. Its about having both butterflys and carbs operating at exactly the same time, but if it works, then cool

yeah that's what I did viney.

And it feels spot on!

Originally Posted by Viney

So what you have is a curvey? You took the airbox and saw the fuel coming out around the needles, you adjusted the screw so that the fuel coming out was equal? Fair enough, but this is not what carb syncing is. Its about having both butterflys and carbs operating at exactly the same time, but if it works, then cool

Indeed.

If you don’t have gauges or want to faff then the ‘lolly-stick’ method is logical and almost foolproof

I can’t be bothered to type/explain it, but I am sure a brief search on the net would bring up details

PatrickUK, it sounds like what you did is change the idle mixture.

[jambo]

I've never had to turn any adjuster more than about 1/2 turn to ballence carbs or throttle bodies, and never done it visually. You may want to check the screw you were using

Yes I used the right screw...

I have all the instructions but just couldn't be bothered with attaching the carb balancing tool - looking at the front carb connection.

[northwind]

I did mine by ear and by feel a few times as an emergency measure, as I ekpt on failing to buy a set of gauges. OK, not actually an emergency at all But, it turned out I was pretty close to right when I fitted up the gauges- not perfect by any means, but closer than some "properly serviced" bikes I've met. Call it "within an acceptable margin of error"...