Hi, I have an off road buggy with a Yamaha YP250 motorcycle engine. It has CVT transmission. I understand the basics principles of CVT but have always owned manual bikes in the past and have never had to repair a CVT transmission so have limited understanding. Recently when setting off from stand still, the buggy has been sluggish and unresponsive at low speed but fine once moving. This problem has been gradually worsening and now the buggy will sometimes not pull away from stand still if parked on a slight slope or slightly stuck in mud. If I start on a flat surface with no obstruction/resistance it pulls forward slowly until I gain a little momentum. It then runs fine after the initial slow start. I am looking for problems with the transmission but as CVT is new to me I'm looking for advice on what to check. The centrifugal clutch and drive belt were replaced a few months ago so should be fine (in theory). If the weights in the variator were sticking, would this cause sluggishness at low speed or is there something else I should be checking out? Thank you in advance for any input.