I have a allis chalmers lawn tractor wont start model 916H no voltage to starter?

Check the volatage at the battery, then check the voltage at both sides of the solinoid. You should have the same voltage at one side, and none at the other ( the one going to the starter/generator). The other problem could be that you have lost your ground. Try cleaning the battery terminals, and with the meter set to volts DC, touch the red to the positive terminal and the black to a known ground (engine block, tractor frame, exaust manifold) and your meter should read the same as it did across both terminals. If it is less, you need to clean the ground at both ends. If you hear a "Click" when you turn the key to the crank position, you know that the solinoid is good. Have you tried to jump the tractor with your truck or car?

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