You should make sure that the jets are centered (i.e. the needles are not
binding in the jets when the piston is all the way down) and
that there is no damage to the piston chambers, or junk inside the
piston chambers, that could be causing the pistons to bind.
When the engine off, push the pistons up with your fingers and watch them drop.
They should both feel the same.
Also make sure that the springs inside the piston chambers are correct and
matched.
Doug Braun
'72 Spit
Quoting Martin Pearce <dungey@pearcem95.freeserve.co.uk>:
> Have just been looking at the carbs. I noticed that the front carb lifts
> first with the back carb following behind. Firstly is this normal? I would
> have thought that they should both rise at the same rate? Both have a light
> oil which to be honest isnt just under the level it should be at. Used a
> screwdriver to lift the chamber and the front one does as expected, slight
> hesitation in the engine and then settles back. Back one didnt seem to make
> much difference. Did it a couple of more times and then it performed as the
> front.
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