Hey clint,
The "nuts" that you refer to (#1 in picture) are hydro relief valves, they are used when pulling/towing, the machine. It sounds like what you have is one "automatic" valve and one "manual" valve. I'm not so sure the 1450 ever came with manual valves, so I believe the one with the little button on top is a replacement. The idea behind the valves is to bypass or divert the fluid when pulling/towing as to not ruin the hydro unit (this is one of the very few ways to tear a hydro up) anyway... On the manual valve (the one with the button) that button should be pushed down if you pull/tow the tractor the one without the button (just flat on top) is automatic and doesn't need any attention when pulling/towing.
As for the leaks try doing what Eagle Keeper says with the valves and that should buy you some time before you have to repair/replace them.
You have 12v on the hot side of the coil with the key on and no jumper wire?
What about the neg side under the same circumstances?
Sounds like corrosion or a bad coil, perhaps an intermittant short or bad wire... Using your wiring diagram trace that wire back through the system and see what you get.
Check and see if the pos side of the coil STAYS hot while you are trying to start it. It could have a short that is only in the "start" position.
After you get it to the point where you get it to start and runs "every time" you will probably want to check your motor mounts for wear. That will be for a later discussion though.
Listen to the Guys here, some of them are pretty sharp...
Good luck and keep us posted.
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