Hi folks just got me a ktm 85sx 2007. Just to get into it again. I’ve been having a few problems with low compression. First of all the coolant was spewing out the overflow on the rad so I replaced the head gasket and while I was messing I did a compression test (throttle wide open) kicked it over like my life depended on it but I’m only getting 75psi which is half of what it should be from what I’ve read. Any ideas what else it could be? thanks in advance.