Sticky Full Throttle

Evening All, does anybody know how to fix a throttle that sticks when twisted and does not spring back. Not in the habit of having the S@#! scared out of me lol. Thanks. Andy.

Is there a grip or antyhing else rubbing against it?

If it's a full-grip throttle, is it touching the end of the handlebar inside?

If neither of the above is the problem, it could just be broken inside, and need to be replaced. Or the spring could have come undone inside and need to be repositioned.

Thank you Amberwolf

If it is thumb throttle try to file a bit of plastic from inside of 22mm mounting hole. This will ussually help.
Regards