|
Post by problemaddict on Jun 11, 2022 22:51:45 GMT -5
HYOSUNG: any gurus here? My friend and I are going nuts here. We've got a big bore kit for a Hyosung SF50 (Morini). Put it together and its got WAY north of 2mm squish and a whopping 60psi compression test. We removed the base gasket and the head gasket/shim and still have a bit more than 2mm squish. As you can see in the pix there's 1mm squish area on the head, and the piston is 1mm from the top of the cyl at TDC. I'm 90% sure he was sold an incorrect bore kit. He broke the first one trying to install it. He bought another cylinder and dremel'd out the case a bit to get it to fit. And now that its installed we have no compression... Anyway, has anyone here done a big bore kit on a Hyosung Morini motor? What kit did you use?? What problems did you run into? Did you have to bore the case at all? I'm pretty much ready to tell my friend to cut and run, but he's invested now and doesn't like to give up on a challenge.... THANKS!!!
|
|