seizing

well i jus rebuilt my 5hp flathead it now it seizing every 3 hours of use why is it doing this:shrug::confused: (edit)= the piston is gettin stuck in the sleeve and the sleeve is dri why isnt it getting oil

After a complete rebuild of my Hustler's HS40 I've been having trouble with the intake valve seizing open. First time, I ran the bike in the yard for quite a while then died and had no compression. After pulling the head I was able to push on the valve and it seated. Took the block back to my...