I have a Troy built mower and the speed does not change from 1st gear to 4th gear much. The trouble shooting says to tighten the belt. HOw is that done?

Hi,
Got a model number?
On some models there is a adjustment where the cable enters the control for engagement.
Peace,
Clarke

Model series J830

Model series J830

Model series J830

Hi,
Manual describes adjust procedure beginning on page 14. Maunual is here:
http://www.troybilt.com/wcsstore/pics/TroyBilt/769-03451.pdf
Peace,
Clarke