The starter will pull power away from the coil unless The "I" (ignition) wire is hooked up! Hook it directly from the starter to the + coil terminal and not through the resistor!! It only supply's power to the coil when you crank the engine!! When the key returns to run position the power doesn't come from that wire any more it comes through the resistor! If your still using a jump wire from the battery by pass the resistor momentarily till it starts and then use the resister once its running!
I'm not saying that's why it wont start
but it could compound any other problem your having
Ive also seen animals plug the exhaust systems up so bad as it wouldn't let the engine run!!!!!