Don did you remove and clean the oil relief/bypass pin and spring? The oil pressure seems very high to me. I just did the same rebuild and found the bypass stuck solid. My oil pressure now is about half of what yours is. I am no expert, just going off of what I saw when I did mine.

 

it was stuck before the rebuild so i lathed out a new pin 5 thousands smaller and put a new oem spring in, there's no drag when i pull it out with a pen magnet but it does look scraped up

 

Maybe it's just my computer speakers not conveying the sound properly, but it sounds like a RZR800 motor. Slight rattle noise. How many hours on the motor after rebuild? Using High Zinc break in oil?

 

i never had one of these 800s before so i don't know what they sound like but this sounds like the rocker arms have slop in them but there all tight,it has about 5 hours on it after the rebuild and i used the sp-4 oil and filter after the rebuild

 

The motor sounds "normal" for an 800. The rocker arms shouldn't have any slop in them, it's cam driven lifters to push rods, there's no adjustment. I was told these cams can "go flat" and the lifters should have been primed from the factory. So not really much you can do but replace parts. Regardless, the noise you are hearing is normal 800 operation. They rattle. They don't run smooth like a fancy new motor. They are the cromagnon of the side x side world motor.

Hard to hear the actual motor, but here's our freshly rebuilt Rev6 motor... the Big Gun Exhaust makes it harder to hear the motor, but it's got that noise you're hearing.

Right after we put the motor in:
https://www.instagram.com/p/ByyvjJvnsRL/?utm_source=ig_web_copy_link

With 99% back together:
https://www.instagram.com/p/BzB_VfmhCVw/?utm_source=ig_web_copy_link

 

Did you use new cam when rebuilding? The motors are loud and rattle a lot. Sounds like a RZR800. Check our YouTube or insta to hear ours. Keep checking that oil level too!

 

Sometimes there can be a small exhaust leak between the head and manifold that will sound like a ticking.