Static balancing + float height - VM29 Smoothbores

[JohnC]

Hi there all, I'm wondering if anyone can confirm the float height should be 23mm from the gasket face to the top of the float with the carbs off and upside down.

I'm also looking for a bit of advice on how to balance the carbs statically using the slide height as I've heard they don't balance very well with gauges anyway.

John

[Pigford]

Float height sounds about right.....

Static is easy - use a ball-bearing of about 5mm diameter (don't matter too much) but between 3 - 7mm is besterest

Adjust slides via bit inside top access lid so the ballby just falls thru' - then you won't be far off

If you ain't got no ballby's - use a drill bit and check for sliding fit on them all

[JohnC]

Cheers m8

[zed1015]

Balancing the carbs correctly does not necessarily mean the all the slides will be at the same amount of lift.
The drill bit method is a good place to start for bench setting etc but to get correct balance you must use a vacuum gauge or similar as it is the amount of work each cylinder is doing that must be matched.

[JohnC]

Appreciate the advice zed1015, I realise that not all cylinders will be drawing the same amount, at least this will get me up and running.

Cheers.

John