Need more info.
It may not have a choke, but may have an enriching circuit, which performs the same function but the circuit is easily clogged.
A choke is literally that, it chokes off the air allowing the
engine to suck in more
fuel.
Take the cover off and look to see if there are two butterfly valves, one in front of the carb is the choke, the one inside of the carb is the throttle, the throttle one will move with the throttle of course.
My old 1980’s Mariner two stroke, made by Yamaha had an enriching circuit and not a choke for instance, but it did have a knob to pull.