MY craftsman 6500 now will not start, turn over the engine. I have replaced the starter and still have the same problem. When I turn on the riding motor I hear a stump and no motor turn over.The old starter will show the top of the starter spindle winded up to the top of the starter, and left in that position. After I replaced with a new starter the new starter did the same thing. the new starter spindle will wind up to the top of the starter and stay in that position. I have tried two different batteries and both good batteries get the same result. How to bypass the solenoid to test if the solenoid is bad. I hear you can turn the motor key, and use a thick screwdriver to touch both poles on the solenoid. Can someone tell me does this test whether the solenoid is bad???What else can I check too see why my riding motor will not start?????