60hp Mercury Throttle

My 2004 Mercury 60 2-Stroke will not maintain throttle position. It slips back to low throttle.
I opened up the dash control and did not see a way to adjust. Same in the motor.

What am I missing?


https://forums.iboats.com/forum/engine-repair-and-maintenance/mercury-mariner-outboards/501348-mercury-control-box-throttle-friction-adjustment-question

Hope this helps.

NN