Repair finished. The wrist pin had a small, white plastic piece holding it in. It tapped right out. For cleaning I used a tissue and a can of compressed air, the kind used for electronics.

I richened the high needle two clicks, hope this helps it last a little longer. Before it was turning a APC 10 7 at 13500. Don't know rpm's now as I don't own a tach, I borrow one at the field.

Thanks for all the advise, I didn't want to send it in for repair. I want to learn to repair my own stuff. Cost 15 dollars. Experience priceless.

thanks again, David