'95 XLT will not idle?!?!?

Easiest thing to check first would be the throttle safety switches. If this sled idled fine before and your key switch is working, disconnect switches up by throttle and see if that rectifies your problem. Understand, by disconnecting safety switches your kill switch will be inoperative also and you will have turn the sled on and off with the key. If this appears to correct the problem chances are your throttle cables needs adjustment. Hook switches back up and adjust cable as needed. If this isn't the cause I would be looking at the pilot circuit in the carbs. Betting its the switches though...

The little blutton in the block is the throttle safety switch. If for some reason the lever returns to idle and the carb slides or cable does not retutrn to idle it shuts down the motor. To test it, hold the throttle lever against the block while the motor is running and put pressure against the pivot pin of the lever so it pushes the pin away from the block. Now try opening the throttle lever. If the switch is operating correctly it will shut down the motor.