Motorcycle Repair: heads removal on 82 honda cb 750, honda cb 750, oil consumption

Question
a spark plug thread snapped inside plug hole,i tried <easy off>,with no success,can i remove the cylinder heads without removing engine from bike?Thanks

Answer
William, the short answer is NO.

Get a shop manual and follow the procedures correctly. Note the camsprocket positions at TDC 1-4 crankshaft markings. Cam timing is critical when reassembling. As long as the head is off, you might as well have the valve stem seals replaced. That will prevent future oil consumption and smoking issues.

Bill Silver