What should the compression be on my Briggs??

I have a Brute 725EX built in 2011 with Briggs engine Model number 128M02-0115-F1. A couple weeks ago I posted a problem about it backfiring once when I released the safety bar and locking up to where I couldnt pull the starter rope at all but it seems fine now with no gas in the oil, no oil in the gas and its not going through oil at all and isnt smoking. I did a compression test on it today and it was 50 cold/60 when warmed up. My understanding is that this has a compression release but I cant find out what the compression should be with the compression release. Any ides or can someone link somewhere I can find out? Thanks