MTD 2004 lawn tractor model 13ac762f729

ILENGINE

Lawn Pro
Joined
May 6, 2010
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Could be a drive belt issue, and make sure to replace them with OEM belts both at the same time if that is what you are needing. could also be a stuck variable speed pulley. If the center section between the two belts doesn't move freely will not change speed. Also wear grooves in the variable pulley can cause some issues also.
 
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