Throttle handle slips back to slowest position

[icefisherman]

hello guys

I have a 1995 Yamaha 2 stroke . the problem i am having is when i am trolling.... I am using the motor as a kicker. Anyways.. when i am set the speed on it, the throttle handle always goes back to the slowest position therefore i lose the target speed and am going way to slow... I know its nothing to do with the idle or anything like that... but something with the actual handle? make sense?

here are some pics of it i am wondering if its the black piece in the middle

thanks in advance for all your help

 

[whitegreg56]

Your throttle friction is set too low.
That's the "black piece in the middle".
Tighten that bolt a little bit at a time....until the throttle stays put.