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90 hp Yamaha lower unit issues?

Posted on 5/14/12 at 6:27 am
Posted by Grassy1
Member since Oct 2009
7330 posts
Posted on 5/14/12 at 6:27 am
Obviously all models of outboard motors have occasional problems...

Have you or a friend experienced lower unit problems on a Yammie 90 hp that seemed unusual?
Posted by Me4Heisman
Landmass
Member since Aug 2004
5512 posts
Posted on 5/14/12 at 7:02 am to
Actually no never on my 2002 model.
Posted by QuietTiger
New Orleans
Member since Dec 2003
26256 posts
Posted on 5/14/12 at 7:22 am to
Only problem we've had we brought on ourselves. Other than that it's been fine since '06.
Posted by TexasTiger
Katy TX
Member since Sep 2003
5343 posts
Posted on 5/14/12 at 7:52 am to
have an 02 that hasn't had an issue...but we do the routine maintance that is needed.

this year we had to replace the thermostat. not really lower unit issue..
This post was edited on 5/14/12 at 7:56 am
Posted by Langston
Member since Nov 2010
7685 posts
Posted on 5/14/12 at 8:03 am to
Never had any on mine. Ran an 06 for 3 years very hard. Im curious to what issues you have?
Posted by Me4Heisman
Landmass
Member since Aug 2004
5512 posts
Posted on 5/14/12 at 9:19 am to
Only issue i ever had was clogged jets.


And not enough torque.
Posted by TexasTiger
Katy TX
Member since Sep 2003
5343 posts
Posted on 5/14/12 at 9:49 am to
ethanol issues have cost me a little money as well on the carb...
Posted by Grassy1
Member since Oct 2009
7330 posts
Posted on 5/15/12 at 5:33 am to
Thanks for the replies..

Langston, I don't have one... just boat shopping and a lot my prospects have Yamaha 90's on them, and someone had mentioned that he had heard some lower unit issues on this motor... so I was just asking...

Looks like good news so far in this thread.
Posted by Langston
Member since Nov 2010
7685 posts
Posted on 5/15/12 at 7:45 am to
I will be perfectly honest. I abused my motor by regularly running rpms too high with a prop that was too small and never even serviced my lower for several years. It was flawless. Good luck with the search.
Posted by cdaniel76
Ponchatoula
Member since Feb 2008
19783 posts
Posted on 5/15/12 at 8:59 am to
quote:

just boat shopping and a lot my prospects have Yamaha 90's on them, and someone had mentioned that he had heard some lower unit issues on this motor... so I was just asking...


I've only had my 90 Yammy for 2 summers. It's a late 80's model but with a new powerhead and 2008 lower unit. I haven't had any issues with the motor(that I didn't self inflict out of stupidity) and have heard nothing but good about how well built this motor is.

Clean it, Flush it, Maintain it and it'll last you a loooooong time!
Posted by dawg23
Baton Rouge, La
Member since Jul 2011
5066 posts
Posted on 5/15/12 at 1:15 pm to
We've run the 90 Yamahas on some of our work boats (where they really seem to get abused) and they hold up well.

One of the dealers we use to service our outboards (Yamaha & Mercury warranty center) does say that the lower units on the mid-range Mercs are stronger than those on the mid-range Yamahas. But if the one you're looking at hasn't been abused, it should be fine.
Posted by bbvdd
Memphis, TN
Member since Jun 2009
28750 posts
Posted on 5/15/12 at 1:23 pm to
quote:

I will be perfectly honest. I abused my motor by regularly running rpms too high with a prop that was too small and never even serviced my lower for several years


Note to self, never ever buy a used boat from Langston...
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