Domain: tiger-web1.srvr.media3.us Yamaha outboard (15) lower unit | Outdoor Board
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Yamaha outboard (15) lower unit

Posted on 7/14/24 at 3:13 pm
Posted by Goldensammy
Cypress, TX
Member since Jun 2016
966 posts
Posted on 7/14/24 at 3:13 pm
I have a 1992 (I think) 15 horse Yamaha tiller handle outboard (model 15ESHQ). Runs great, or did a year or so ago when I last ran it. The lower unit has a leak and water was getting in the oil.

I'm looking for a kit that includes all the seals and other parts. Anyone have a good online source for parts?
Posted by deeprig9
Unincorporated Ozora
Member since Sep 2012
74189 posts
Posted on 7/14/24 at 3:42 pm to
I don't have the answer, but I had a Gamefisher small tiller outboard for 20 years and the foot oil was always milky when I changed it annually, but no metallics on the magnet nut and never caused it any apparent problems (it had plenty of other problems, all ethanol related in hindsight). How much water intrusion are we talking about?
Posted by Loup
Ferriday
Member since Apr 2019
16093 posts
Posted on 7/14/24 at 4:58 pm to
parts diagram from Crowley Marine


They might have a kit.


Don't do what I did. I got drunk and took my lower unit apart right after I ordered the parts. By the time the seals arrived 4 or 5 days later I'd forgotten how everything went together. Thankfully there were a few youtube vids to help me out. I think I'd rather buy a new motor than rebuild another lower.
This post was edited on 7/14/24 at 5:01 pm
Posted by Barneyrb
NELA
Member since May 2016
7045 posts
Posted on 7/14/24 at 5:45 pm to
Go by O'Rilley's and see if Sierra has a seal kit for that engine
Posted by mtcheral
BR
Member since Oct 2008
2092 posts
Posted on 7/15/24 at 6:42 am to
Check out simyamaha .com. I emailed them what I needed and my motor model and serial number and they emailed me links to exactly what I needed. Pricing was good also.
Posted by Cypressknee
Member since Jul 2017
1453 posts
Posted on 7/15/24 at 8:32 am to
I’ve never seen a kit, I always bought the parts needed thru a parts house like linked above. You can also go to a Yamaha dealer and get or order the parts. Will tell you this, many times the carriers are frozen in the case and take pullers and sometimes heat to get apart.
Posted by Goldensammy
Cypress, TX
Member since Jun 2016
966 posts
Posted on 7/16/24 at 7:14 pm to
Thanks everyone.
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