Very mechanically minded person
Anonymous posted an answer for this Troy Bilt Tb425cs 26cc 4 - Cycle Curved - Shaft Gas Trimmer with Ez - Start and Speed Spool:
"Hi the key is moulded as part of the flywheel on most machines these days which doesent..."
Anonymous posted an answer for this Poulan 25cc 2-Cycle Gas Powered String Trimmer #P2500:
"Hi this would be the only possible solution , The flywheel may have come loose causing the..."