RE: CAN NOT REPLACE CARBURETOR RETAINER
There can bo only only one response here: Get Help
Failure to get help in learning to fly most often results in never acheveing anything.
Failure to get help in learning to operate a glow engine most often results in frustration and fixing problems that may or may not exist.
If you goober that engine up with JB glue then you just might have to replace it for no reason other than you just made it unrepairable.
John