[AT] Husqvarna Lawn Tractor

[DDSS]

We just purchased a Husqvarna r220t articulating lawn tractor last week ( 
http://www.husqvarna.com/us/products/riders/r-220t/  )  , the shipping crate 
was destroyed but not as bad as the first one they shipped. The freight 
company destroyed that tractor and later took it away and the dealer shipped 
me another.  This was not in as bad of shape as the first one, but the 
dealer is sending me both fenders, the engine cover, the back plate that 
sits behind the engine and says "HOT" and the clip that holds the engine 
hood down. The plastic piece that rests on the deck looks like it got run 
over, so they are sending one of those as well.

When I first tried to start the engine, it ran like the choke was stuck on. 
The set screw was loose on the choke cable, problem fixed.

When the deck arrived (they lost it on the second shipment)  I un-boxed it 
from what was left of the crate, and mounted it on the mower and was all set 
to go do some serious cutting.  Na.  When I started letting the deck down 
(it moves a tension pulley back at the engine) the engine died.  I thought 
maybe I let it down too quickly. Nope.

The deck belt was a bugger to get on, so I thought maybe that was too tight. 
Nope.  I removed it and still the engine died.  There are three pulleys 
under there, one at the engine that goes to a mid-mount pulley and the 
mid-mount pulley also has a belt connecting it to the deck.

I removed the belt that runs from the engine to the mid-mount pulley and the 
engine does not die. I am thinking maybe the tension on the belt is too high 
but there is no adjustment, also the belt is taught but not too tight.  The 
mid-mount pulley spins freely. The tension roller also spins freely.  It's 
strange but the engine shuts off way before the deck pulley is fully 
engaged.

Anyone care to guess what the problem might be?

The link below is a link of the engine dying.

https://dl.dropboxusercontent.com/u/22482341/20140610_190108.mp4

Thanks!