I bought a used dirt bike a while back (2008 YZ 4 fiddy).
It threw me down the first couple times I rode it.
The front end seemed to have a weird issue.
It was like it had a mind of it's own.
I took it to Dave and told him what it was doing (hurting me).
When I got it back it was a completely different bike.
He saved the it. He is a motorcycle whisperer.
I was ready to sell it after only owning it a few weeks.
Thanks to Dave's expertise I can enjoy riding again.