What I meant was put a clear tube on the nipple that gas comes out of when you drain the bowls and hold it up along side the float bowl then open the drain to check the float level. The gas will fill the tube to the same level as the float chamber. This probably isn't the problem but doesn't hurt to check, also probably not the problem but a 42 pilot is probably too small and probably lean with only 2 1/2 turns. I am just brain storming and trying every possible cause. Pick up gap as Ed says is a real possibility too. Very hard to diagnose without laying hands and ears on the machine. All we can do is read your input and take an educated guess. Wouldn't hurt to check the coil plugs and any other connection under the tank you could have knocked loose while balancing.

P.S. No need to drop the bowls if the clear tube says the float levels are good unless you want to up the pilot jet.

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