Walt---As you figured, it's important that both carb pistons rise and
fall equally. You need to isolate the reason for the difference by doing
a few things.
Take out the dashpot dampers.
Take out the springs.
With these out of the picture both air pistons should have equal
resistance to movement. If they don't, check the possibility that you
have 'mixed' the carb parts whle both were dissasembled, as each air
valve and suction chamber are paired. Try switching them, just long
enough to see if this gives equal 'free-fall.'
Still not right? Put the springs back in, leaving the damper rods out.
The springs should be factory matched to the ounce, but try reversing
them to see if the free-fall follows this switch. (If both springs do
not have the same free length, it's best to replace them.)
Be sure both diaphragms are properly located in their recesses.
There's more, but you should have found the cause in doing the above.
Let us know.
Dick Taylor
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