Have a 110 on a Yak that has been sitting for probably 5 months or so in the basement-consistent temps and not damp. Went to turn the prop today and the bearings felt a little scratchy at first but seemed to loosen up after a few rotations but then all of a sudden it lost almost all compression-just barely enough left to feel the compression stroke. I'm sure it needs sent in but I'm really curious about the compression deal-did something else give out? Running Byrons 30/24 and always run the engine dry at the end of a day of flying.