I am HavingTrouble Keeping the BELT ON MY TROYbUILT pONY

look for a damaged pulley or seized idler they can cause premature failure of a belt

The belt need a change.

http://www.partstree.com/parts/?lc=troy_bilt&mh=22

well i would take a long look at the spring which holds the tension pulley in place. if it is weak, or not connected correctly, there will be inadequate tension and the belt can come off. I would also take a look at whatever fasteners keep the deck in place as if it is not kept to the rear, there again will be too much play in the deck belt.

here are two websites that will help, the second on is a forum so it may be of more help,Tim:

http://www.ehow.com/how_7983565_use-troybilt-pony-tiller.html

http://forums2.gardenweb.com/forums/load/tools/msg1014281421084.html

Sounds like the float level in the Carb is stuck open or set to high.



RECOMENDATION:
Shut off fuel and remove float bowl and inspect for proper operation.


INFO:
You most likely have trash keeping the float valve open or out adjustment..




Hope this tip helps.

R/
David

You are trying to dig too deep, too fast. Set the tines at a shallower depth and make multiple passes, gradually getting deeper.

Not technically a solution, but there are Troybuilt tiller forums out there on the net. MTD bought them out some years back and some parts are still available. I had to go thru them to find a part number for a mid 80's Horse unit that had a broken drive coupling. Anyways, they have parts breakdowns and manuals on their site. And I've seen some on ebay if you need parts.

remove plastic belt cover
remove the guard,belt/pulley
work in the right side first:
remove the rigth-side wheel
remove the screws of the bumper
remove 2 screws on bracket/transmission assembly
pull the bracket
install the new belt
reinstall the right side screws and wheel

do the same in the left side
Ps: remove the belt guide, and reverse return spring
http://www.partstree.com/parts/?lc=troy_bilt&mn=21A-634K766+7HP+FRT+Roto-Tiller+(2005)&dn=0079200009

Could be anything. An air leak between carb and motor, wrong jet settings(air fuel mixture), choke adjustment, water in gas, and more.