Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Do you have the rest of the model number? OHSK-?????. Most of the engines have an intake elbow, that carb bolts to, you can remove the elbow at the head, and leave carburetor bolted on the end.
You will have it in hand, and can use other tools, locking pliers, etc, to remove the bolts.