Wow - talk about procrastination! I can't believe it's been almost a year since I last messed with this!
Turns out it was a bad o-ring on the fuel rail - the one opposite the side where the 'T' fitting is. O-ring was flattened out and there was noticeable corrosion in the groove it sat in.
For those who face a similar repair - the o-ring in question is 5.8mm (ID) X 1.9mm. The one on the other side (T fitting side) appears to be a bit larger, but is listed as the same size. I had a box of (nitrile) metric o-rings, and the 6mm X 2mm ones appear to fit just fine. The T fitting side actually has two grooves, so I doubled up on that side just 'cause.
To split the carbs, you only need to remove the one solid bracket between them (4 screws), and the long bolt that runs between them. You also need to remove the choke linkage (pay attention to the spring locations). If you are careful, you can get the fuel rail out without messing with the throttle connection and associated springs.
I'm hoping this is the LAST damn time I have to yank those carbs!
Cheers,
Brad
