I just bought a 200le and the guy told me it ran and welded so I went home and hooked jumper cables to the ground and starter and could only get it to turn partially over so I manually tried to turn the engine over and it will go about half way with ease and then hits a hard spot and will not turn anymore you can turn it the other way with ease untill it comes around to the same spot and it will not go any further any suggestions would be appreciated by the way it's an Onan. Thanks