This might help others not to panic if it happens to you. My '00 426 sat unstarted in my garage for about 5 weeks due to many reasons. Tonight, I wanted to do some maintenance and began my engine starting routine. First, I pull in the compression release lever and kick the engine through about 20 times without touching the throttle and leaving the petcock valve closed. This is to pump oil to the head before lighting the engine. Once I released the compression release lever, and tried to bring the engine to TDC, I noticed that the compression was very low. I could feel that I had SOME compression, but not nearly what I should have. I began to kick steadily on the kickstarter to try and bring the compression up. Slowly, it began to build compression. Suddenly, it fired, without me trying to start the engine. I let it run for a bout 3 minutes and shut it down. Now, it had normal compression. I could even stand with all my weight on the kickstarter at TDC and it would hold me there for about 3 seconds before it would slowly move beyond TDC. What comes to mind to me about why this happened is that the cylinder wall needs some oil splashed on it to seal the rings and make compression. By having sat idle for over a month may have let the rings and cylinder wall get a bit "dry". I think that from now on, I will kick the engine through about 30 times at least every 2 days. Having very little compression gave me a terrible anxiety attack. That was not fun.