DT65 missing cyl 1 & 2

[andyponder]

I have a DT 65 that is missing on cylinders 1 & 2. I can kill cylinder 1 with no change. Cylinder 2 with little change. Cleaned & rebuilt carbuerators. Appears to have plenty of spark. Checked compression - about 130 all the way across. Add fuel to cyl 1 & problem worsens. Help...

[boats.net]

Check to see if reed valves are spitting gas out front of carbs, check fire on each cylinder with timing light to see if steady.