Hunting Washington Forum
Washington State Hunting Forum and Northwest Resource Site
Please
login
or
register
.
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News:
Free:
Contests & Raffles
.
Home
Help
Calendar
Advertise
Login
Register
Hunting Washington Forum
»
Equipment & Gear
»
Power Equipment & RV
»
90's Yamaha no telltale?
Advertisement
Advertise Here
« previous
next »
Print
Pages: [
1
]
Go Down
Author
Topic: 90's Yamaha no telltale? (Read 22299 times)
Stein
Non-Hunting Topics
Trade Count:
(
+11
)
Explorer
Join Date: Sep 2013
Posts: 13011
Location: Arlington
90's Yamaha no telltale?
«
on:
June 25, 2025, 07:50:38 PM »
Our Scout troop inherited what I believe to be a 90's Yamaha 15 we intend to use on our safety mini-RIB for canoe trips. I tried looking up the serial number and apparently it was made in Japan for the Japanese market and thus has zero info available online. I went through it, replaced a few things and it fires up first pull.
The only problem is that it doesn't seem to have a telltale which I thought were on all outboards. I did some Google-fu and it sounds like outboards from the 60's and 70's may not have them but I didn't see anything from the 90's.
My concern is that without one I can't verify the coolant system is working. The impeller looks great and there are a couple bypass holes above and forward of the prop that water comes out of when it's running so I'm mostly confident it is cooling.
Does anyone have experience with a motor like this make and vintage without a telltale?
I plan on taking it out for sea trials tomorrow but would like to be 100% sure before we do something that can't be fixed.
Logged
Advertise Here
MADMAX
Trade Count:
(
+23
)
Old Salt
Join Date: May 2007
Posts: 9411
Location: Kitsap/Cle Elum
I like big bucks and I can not lie
Re: 90's Yamaha no telltale?
«
Reply #1 on:
June 25, 2025, 10:04:40 PM »
Your talking the pee-er ?
https://www.reddit.com/r/boats/comments/1la4tps/90s_yamaha_15hp_2_stroke/
Logged
Never argue with an idiot. They will drag you down to their level and beat you with experience.
Mark Twain
I Ain't Captain Walker.
I'm The Guy Who Carries Mr. Dead In His Pocket
What would life be without the thrill of the hunt ?
RB
Trade Count:
(
+1
)
Frontiersman
Join Date: Jun 2011
Posts: 2997
Location: Arlington, washington
Re: 90's Yamaha no telltale?
«
Reply #2 on:
June 26, 2025, 07:05:08 AM »
I was thinking same as MADMAX is it not peeing? Have had similar issues with my eight horse Honda bugs will clog up the pee tube and it will not pee. Took me a while to figure it out cause the hose was not easily seen. To my knowledge every outboard should pee, unless it is somehow air-cooled.
Logged
IAFF #3728
MeepDog
Trade Count:
(
+5
)
Longhunter
Join Date: Jul 2021
Posts: 718
Location: SE Washington
Re: 90's Yamaha no telltale?
«
Reply #3 on:
June 26, 2025, 07:51:27 AM »
I had a 1975ish Johnson 15 that didn’t pee by design. I’ve never heard of that with Yamaha. Your best bet would be to clean out the passages or find some other way of verifying function because no coolant means toasted heads and bearings. Bad juju
Try running it with muffs instead of in a bucket and see what the water does.
Logged
Crunchy
Political & Covid-19 Topics
Trade Count:
(
+2
)
Frontiersman
Join Date: Apr 2007
Posts: 4969
Location: Puyallup
Re: 90's Yamaha no telltale?
«
Reply #4 on:
June 26, 2025, 08:40:12 AM »
Ive had the no pee a couple of times with different motors. I used weedwacker line to push through the pee hole and hose to clear the line. I also removed the hose from the motor and pushed the line into the engine as well. If that doesn't work you might need a new impeller. Plenty of YouTube videos on how to fix.
Logged
Stein
Non-Hunting Topics
Trade Count:
(
+11
)
Explorer
Join Date: Sep 2013
Posts: 13011
Location: Arlington
Re: 90's Yamaha no telltale?
«
Reply #5 on:
June 26, 2025, 10:41:15 AM »
There is no hole as far as I can tell. I've looked it over several times, both sides, back, can't find a hole that water would come out of.
Logged
Longfield1
Non-Hunting Topics
Trade Count:
(
0
)
Hunter
Join Date: Apr 2022
Posts: 194
Location: Maple Valley
Re: 90's Yamaha no telltale?
«
Reply #6 on:
June 26, 2025, 11:22:34 AM »
Whats the model number?
Logged
Stein
Non-Hunting Topics
Trade Count:
(
+11
)
Explorer
Join Date: Sep 2013
Posts: 13011
Location: Arlington
Re: 90's Yamaha no telltale?
«
Reply #7 on:
June 26, 2025, 12:28:38 PM »
Tag says:
Yamaha 15D
684CS 02562x
x is some digit that is too corroded over to read, maybe 9.
Logged
Stein
Non-Hunting Topics
Trade Count:
(
+11
)
Explorer
Join Date: Sep 2013
Posts: 13011
Location: Arlington
Re: 90's Yamaha no telltale?
«
Reply #8 on:
June 26, 2025, 12:31:54 PM »
This thread seems to think it's a 1994 sold in Japan.
https://www.yamahaoutboardparts.com/forum/general-discussion/yamaha-outboard-forum/25037-yamaha-serial-number
Logged
Stein
Non-Hunting Topics
Trade Count:
(
+11
)
Explorer
Join Date: Sep 2013
Posts: 13011
Location: Arlington
Re: 90's Yamaha no telltale?
«
Reply #9 on:
June 26, 2025, 12:34:26 PM »
When I went through it, impeller and seals all looked great, almost brand new. I couldn't find any water tube under the cowling or any opening anywhere I've ever seen a telltale opening, no holes above the waterline at all except the upper exhaust.
Logged
BigGoonTuna
Non-Hunting Topics
Trade Count:
(
+4
)
Sourdough
Join Date: Jun 2009
Posts: 2418
Location: Yelm
Re: 90's Yamaha no telltale?
«
Reply #10 on:
June 27, 2025, 04:04:18 AM »
It looks like according to the drawing on this page, there should be a connector for a telltale hose on the upper part of the exhaust cover (see #18 and 19):
https://en.impex-jp.com/catalogs/outboard/yamaha/15/6e8-1995-dark-bluish-gray-metallic-2-japan-42599/cylinder-and-crank-case-1640808.html
I compared the drawing to a couple US market 2 stroke from the 90s and they appear to be identical. I used to have a 1998 15hp and it most certainly had a telltale hose on it.
Logged
you can still get gas in heaven, and a drink in kingdom come,
in the meantime, i'll be cleaning my gun
ASHQUACK
Non-Hunting Topics
Trade Count:
(
+4
)
Longhunter
Join Date: Oct 2010
Posts: 961
Re: 90's Yamaha no telltale?
«
Reply #11 on:
June 27, 2025, 06:50:54 AM »
Crazy thought here, was it ever plumbed for a hot water wash sink? Shops do some funky stuff to plumb them in sometimes.
Logged
Crunchy
Political & Covid-19 Topics
Trade Count:
(
+2
)
Frontiersman
Join Date: Apr 2007
Posts: 4969
Location: Puyallup
Re: 90's Yamaha no telltale?
«
Reply #12 on:
June 27, 2025, 07:31:16 AM »
If it has an impeller it is pumping water somewhere to cool the engine. Boats.net and look at their diagram?
Logged
Stein
Non-Hunting Topics
Trade Count:
(
+11
)
Explorer
Join Date: Sep 2013
Posts: 13011
Location: Arlington
Re: 90's Yamaha no telltale?
«
Reply #13 on:
June 27, 2025, 01:23:57 PM »
Thanks Tuna, I'll check that out.
Logged
Advertise Here
Print
Pages: [
1
]
Go Up
« previous
next »
Hunting Washington Forum
»
Equipment & Gear
»
Power Equipment & RV
»
90's Yamaha no telltale?
Advertisement
Advertise Here
Quick Links
Front Page
Donate To Forum
Advertise on H-W
Recent Posts
Articles
Forum Rules
Recent Topics
Son drawn - Silver Dollar Youth Any Elk - Help?
by
VickGar
[
Today
at 09:14:24 PM]
Do folks run their refrigerators on Propane while towing their RV's?
by
ghosthunter
[
Today
at 08:23:59 PM]
Sportsman Alliance files petition to Gov Ferguson for removal of corrupt WA Wildlife Commissioners
by
ghosthunter
[
Today
at 08:19:18 PM]
Bowfishing on the Snake River
by
Kingofthemountain83
[
Today
at 07:57:32 PM]
3-Legged Washington Black Bear
by
Kingofthemountain83
[
Today
at 07:53:12 PM]
Cougar Problems Toroda Creek Road Near Bodie
by
mountainman
[
Today
at 06:38:52 PM]
AKC Australian Shepherd Puppies
by
TeacherMan
[
Today
at 04:26:31 PM]
Lund Fisherman 1800 info/advice
by
NorseNW
[
Today
at 04:01:03 PM]
Alaska 2025
by
Sitka_Blacktail
[
Today
at 02:57:51 PM]
Rotator Cuff repair X 2 advice needed
by
trophyhunt
[
Today
at 01:59:14 PM]
Looking for a hunting partner
by
wildfire
[
Today
at 01:14:37 PM]
More Kings!
by
30.06
[
Today
at 12:08:37 PM]
Muzzleloader scope options
by
Kingofthemountain83
[
Today
at 12:05:28 PM]
AUCTION: Custom knife by Alden Cole
by
jrebel
[
Today
at 11:53:45 AM]
Stealth Cam QV20
by
Kingofthemountain83
[
Today
at 11:43:44 AM]
Mt. St. Helens Area – Muzzleloader Deer & Elk Advice (Back After 12 Years)
by
HntnFsh
[
Today
at 11:12:56 AM]
Calling in August in Western Washington
by
logola512c
[
Today
at 10:22:19 AM]
Ross Lake boat launch?
by
cjjcb
[
Today
at 10:14:59 AM]
2025 Montana alternate list
by
Fletch
[
Today
at 09:44:18 AM]
Mt. St. Helens Goat
by
hunterednate
[
Today
at 09:30:03 AM]
SimplePortal 2.3.7 © 2008-2025, SimplePortal