It has a very weak spark when it won't crank, gave it a shot of ether and it won't crank. I can go out there and fire it up right now it may drive 500 ft or 500 miles. Last two times I drove it, the exact same distance each way except for having to push it a few feet to get it into it's parking space.
Had to unhook the battery due to the starter that has never stayed cranking after the key is turned off