update on the cooling situation
received my adapter and it's really nice. Heavy and finished well, not some flimsy POS, which is good because after tax and shipping this dang piece cost me $67 or something like that. The only snap on product I own haha, i see how people go broke being collectors. Anyways, for those that are in the market I found that matco also makes the exact same adapter with almost an identical part number.
"Snap on" part number is
TAB10069 and "Matco" is
MPT10069P . Bought it directly on "snap on's" page, probably a bit cheaper if you have a dealer near you but I didn't feel like waiting. Not sure what the list price is for the "matco" unit, i'd hope cheaper, but I wasn't able to find out price or purchase online with their website and I didn't feel like picking up the phone again.
The issue i ran into was with the actual pressure testing kit i bought through amazon (astro pneumatic
78585). The cap (piece that goes on top of the adapter i just bragged about) is really flimsy with the thinnest gasket imaginable and does a terrible job sealing. Slight rock side to side and it breaks the seal. If i make sure the caps completely flat it holds pretty good but still leaks down. Start at 1.4 and after two hours it's 1.1. I'm 99% sure it's the cheap cap and not the actual coolant system. Tried spraying soapy water on top of the cap with it under pressure but didn't see anything jump out at me.
So, i just purchased another radiator pressure tester ("otc"
6977, looks like "Matco"
CSPTK but half the cost) that pressure tests through the hose instead of through the cap. Obviously this alleviates the need for purchasing an expensive adapter like I did and allows you to test the cap as well (which i'm still not able to do with the adapter and neither snap, matco, or anyone else I can find makes one). If you already have a nice pressure adapter in your tool set though the adapter i listed above will def do the job.
Also purchased another cap, which looks a tad different than the OEM one. Not sure if it's an updated part number or what but the bronze one is the one that came on the bike and the silver one is the new one.
Will update further if you guys want once i get the new tester. Thanks for letting me rant, hope it helps someone else in the future.