imported post
mark3, the hole is just large enough for the gear to slip back into the chain by starting one side and then the other. Never heard of one just popping out when removing the starter. If it came out and was still on the starter shaft when you pulled the starter you have another problem. No biggy toremove or replace. It just sits inside the chain when the starter is removed. (normally) Not sure if there is a front or back to the gear. Just don't push the chain completely to one side and drop the gear into the case.:waving:Keno