Yamaha Vmax 150 lower unit troubles?

[brownies]

I usually change my lower unit oil every 6 months. Only had this boat 6 months though. When I bought it, I changed it. Checked it a couple of times and it was full. Spun the prop by hand the other day it was just a slight bit rough feeling. No play though.<br /> It was time, so I changed the grease. The old grease didn't have any metalic in it, but, it was "black". Not "milky" looking at all...just black.<br /> I do use this boat quite a bit though. Just never seen this color on any other motor I've had. Should I be concerned? OR is this normal and I need to change it more often.

 

[andy6374]

Re: Yamaha Vmax 150 lower unit troubles?

"Most" lower unit oil will look black even after only a couple of uses. If no metal pieces came out with the lube you're fine, tiny metal flakes are normal as well.

 

[brownies]

Re: Yamaha Vmax 150 lower unit troubles?

Wonder where the chunks went?<br />Last two times out been wondering about that noise that sounded like a nod rocking. Hard to pinpoint since it was a come and go knock while in gear. Pulled up to load the boat and liked to not have gotten into reverse. <br />Curiosity got the best of me. Pulled what I would call the rear ring gear just to see which bearing was a "bit rough". <br /> I have no idea how this boat moved at all. I see a few good teeth....not much left of the others.<br /> Anybody got an good recomendations.<br />97 Yamaha 150 V-max.