Bobcat ZT200 For quite a while (2 years or more) when I pull up the PTO switch sometimes I get a hesitation before the clutch engages. To get it to engage I have throttled up or down to change RPMs and this has worked. Also when the switch has been engaged I have noticed that sometimes if I start going forward this has also helped in getting the clutch to start. Now the clutch will not engage at all, even when i try my past successful fix its. So any idea as to whether it is the switch, clutch or something else that could be wrong. Thanks in advance.