Same purpose,.. different function...
So,.. yea,.. it's a choke...
A bike, or car, will warm up faster if you just ride it to warm it up...
Just don't try for any 1/4 mile records for the first few minutes...
My DP bike,.. would "walk" itself,.. if you idled on the kickstand...
It would go about a foot every 10 seconds...
Leave it alone for a few minutes... no tellin' where it would go...
...