Yes, the new cylider has almost no compression, but again I think that is because it is new - unless it could have somthing to do with the last paragraph.

The person that I bought the engine from did the repair, and like I said I took the engine completley apart and everything looked good. The only thing I didn't take apart was the valve assembly, but it appears to be working correctly. Also the timing is correct, I set it as stated in the manual - line up the two dots. Had to take out the front bearing to do accuratley.

The carbs are clear, fuel was coming out of the exhaust, although that might have been from the vent line.

The plugs are brand new "F" plugs, and I have checked them.

One thing I do notice is that the cylinder in question, when on the power stroke, is almost like it is creating a vacuum in the cylinder. The moment the exhaust valve opens, there is a pop, like the pressure was equalized - you can feel it as you turn the prop. And yes, the intake valve is opening.

NJD