View Full Version : troy bilt 4-speed, only one speed

10-18-2009, 09:56 AM
i have a troy bilt tb320 xp 21' Rear Wheel Drive Self-Propelled Mower. the mower is built in with 4 different speeds, however i have noticed that only one speed works. i cant find the receipt or owner manual so i cant return it. what could be causing this problem?