Can anyone tell me where I can find an engine rebuild kit for a 2016 zforce 800?

Did you have any luck finding a rebuild kit? I just picked up a 16 800ex that has a gnarly knock I believe to be a rod bearing. 

[2015 Z Force 800 53/Trail EPS]

There are no kits. You just have to get what you need and have the machine work done by a shop. OR- you can do as I have with other engines, sent it to nFlow and have them re-manufacture it to better then factory specs and get a warranty to boot. You do the R&R. What I like about them is they have the same standard as we did 40 years ago with Honda-"No machine leaves the shop until it's right". If I had all the tools and equipment available to me today as I did back then...I still would probably have nFlow do my engines. 

Would t put my faith in this but

https://www.ebay.ca/itm/385521184367?_trkparms=amclksrc%3DITM%26aid%3D1110011%26algo%3DHOMESPLICE.DISCLISTINGS%26ao%3D1%26asc%3D20221018103213%26meid%3Db6807183926b497594fe1b4a6e270890%26pid%3D101430%26rk%3D2%26rkt%3D12%26sd%3D354860168390%26itm%3D385521184367%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3Ddefault&_trksid=p2332490.c101430.m3021&amdata=cksum%3A385521184367b6807183926b497594fe1b4a6e270890%7Cenc%3AAQAIAAAA4B3w31MgdJJjBL0%252BLx0NgeGEdS8FFrH%252BF%252FkSPonEM%252BR26sU8Lys8p6zaRCY8FytIOZiM%252Fy1V1VAZPy4FRWtAly6F2vVWDIVXNkij3qOKL99lq2mF2AkObVMhv8MKdzk66ocXgRtWfo6AeFA6zPzq1X4UAMsq5e2DrRPtq5l6ao%252FFAHlDWZgnlaCTRurOVQEjGrnts94Pe8ewsX5acQxD%252BkAYxiUELSasS0rG6HWTwVPjUBmZociGQw6rln6Mv78Hg8JmWPCMfzv6ysLwhlcsDJLqfSfrGrgEWuuLOTpUA22N%7Campid%3APL_CLK%7Cclp%3A2332490

[2015 Z Force 800 53/Trail EPS]

Wow that's cheap.....

Not cheap, but ...

https://www.nflowmotorsports.com/product/zforce-800-trail/

You could try searching on AliExpress.  There are CFMoto engine rebuild kits there for various other CFMoto products.  Things on AliExpress can be hit or miss on quality, but AliExpress has always stood behind any purchase I've made if it turns out to be bogus and given me a full refund.

I purchased the eBay kit. Looks like stock parts. Cfmoto is stamped on the parts.