I have 2 engines for sale.
Both are non running.
For parts Only. They are complete long blocks. Both are damaged from too much dirt getting in the intake.
1000.00 each, buyer pays shipping

Started hearing engine knocking and oil pressure light started coming on.

Checked oil filter and lots of metal and copper. 
Decided to pull out engine and ordered a new one.  Should be here next week. 

Took off throttle body and inspected intake.  Not good.  Lots of dirt. 
I have been running a uni filter with pre filter since day one and clean it after every ride.
I'm suspecting that I might have a tear or something going on with the intake boot.