Doug Mixon
New member
I have a Yamaha 150 4 stroke 2005, the last 2 time I have been out on the water and brought throttle back to idle it has a squeak, I pulled the upper cowling off while running but it doesn't seem to be coming from top of engine area, sounds more like lower unit. After boat sits for a while OFF I will restart and noise is gone while idling. I will advance throttle and relocate to new fishing area and then noise is back when I idle. Engine runs great, good high end rpm. any ideas