2009 Yamaha Grizzly 700 EFI
Bought a used 2009 Grizzly 700 back in April. Seller told me that it had a big bore kit installed but I can't remember what size. Last weekend, had an issue where it would blow coolant out of the overflow anytime I got on it hard and when I checked the coolant, I could see oil spots floating around. Easy diagnosis, head gasket was failing. Went online to order the gasket and realized there are different size gaskets for the different big bore kits. What is the easiest way to tell what size gasket I need? I already have it tore down if there is something I can measure to find out.