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  Info re Yamaha 8 hp 2/s motor please

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Author Topic:   Info re Yamaha 8 hp 2/s motor please
elaelap posted 05-29-2004 05:37 PM ET (US)   Profile for elaelap   Send Email to elaelap  
I've just finished re-mounting the Yamaha 8 hp two stroke kicker that came with my Outrage 18. I spent a couple of hours this morning using up a roll of paper towels and a can of WD40 getting rid of the crud and grease...the previous owner or the one(s) prior to him seemed to think that if a little lube is good, a pint or two must be better, and make sure to slap gobs of it everywhere you can, you never know. Anyway--

I'm curious about the year of the motor, and any experiences you folks have had with this model. The engine itself seems real clean inside the somewhat battered, very greasy cowling, and the guy who sold me the boat said that the kicker had low hours. Some I.D. numbers: 8 SG, 6G1, S, 033025.

Any help appreciated; just don't tell me it's actually YOUR long-lost kicker stolen off your old Bayliner, and you won't tell the cops if I pay the shipping.

Tony

jimh posted 05-30-2004 09:39 AM ET (US)     Profile for jimh  Send Email to jimh     
Tony, that serial number is actually from a Yamaha that sank into the Great Salt Lake in Utah in 1986.
elaelap posted 05-30-2004 03:42 PM ET (US)     Profile for elaelap  Send Email to elaelap     
Very funny. Ha ha. I sure wish newcomers to this site would read the guidelines before trolling what they think are 'humorous' comments past folks who are just trying to get a little information. Where's our fearless moderator when we need him? Probably out in his new, as-yet-to-be-identified-but-I-sure-hope-she's-a-classic Bayliner.

AQUANUT posted 05-30-2004 11:56 PM ET (US)     Profile for AQUANUT  Send Email to AQUANUT     
unfortunately like mercury..yamadawgs don't put the year in their serial numbers....[at least not so consumers can figure them out....honda and yamaha are on the letter code system now...where as merc uses plain ole uncomplicated number system
I will look it up for ya when my weekend is over ifin ya like.

try superclean from napa...it kinda works on oilly ole 2 strokes.


it sounds like a "classic 8" with the squared off cowl..
is it yamaha blue or yamaha gray?

elaelap posted 05-31-2004 07:02 PM ET (US)     Profile for elaelap  Send Email to elaelap     
AQUANUT,

The cowling IS squared off aft, and the motor is bluer than my new 115. I have a feeling that it might have been purchased back in '88 along with the boat and its original Yamaha 115 two stroke. It's so clean inside, however, that either it never got used or somebody took amazing care of it inside (at least cosmetically), while totally neglecting it outside. Thanks in advance for any info.

Anybody got a manual they would be willing to photocopy for me (obviously I'd pay for the copying and postage)?

Tony

Abalonehunter posted 06-02-2004 11:08 AM ET (US)     Profile for Abalonehunter  Send Email to Abalonehunter     
Tony,

I think we have roughly the same motor, though ours is a long shaft. The 22 Revenge that we had (Royce now has) came with a 8 hp kicker. We used it when we had to but felt it was not quite up to par for moving the Revenge, hence upon the repower we also bumped up to a 4 stroke kicker. What we also found out was that using it as a trolling motor was bad news it seemed to put off a frequency that didn't help with the salmon, it seemed as though everyone around us would catch the fish and we were working our rears off for a scratch or two. I'll check the S/N to see if its similar but it sounds like about the same vintage. The only other problem we had was that the tell tale pisser has had a tendency to clog, we were pretty good about doing either a fresh water muff or barrel run but it likely wasn't good enough.

George

Bigshot posted 06-02-2004 01:26 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Should not comment if ya don't know the answer.....8SG=1988!

Imbedded in the model number is the horsepower and year of the engine.
For example:
If your model number is 115TRR your engine is a 1993 115hp engine.

The first numbers are the engine hp.
The last letter corresponds to the year listed in the chart below.

1984(N) 1985(K) 1986(J) 1987(H) 1988(G) 1989(F)
1990(D) 1991(P) 1992(Q) 1993(R) 1994(S) 1995(T)
1996(U) 1997(V) 1998(W) 1999(X) 2000(Y) 2001(Z)

Abalonehunter posted 06-02-2004 02:41 PM ET (US)     Profile for Abalonehunter  Send Email to Abalonehunter     
...guess I shouldn't have commented, if the last letter is the year can we surmise that the first letter in this case is S for Short shaft? Sorry about the statue Bigs.
elaelap posted 06-02-2004 06:39 PM ET (US)     Profile for elaelap  Send Email to elaelap     
1988, same as the boat, as I suspected. It runs fine, but sure hope it doesn't scare away the salmon, George. I had planned on trolling with the main motor, a four stroke, and only keeping the kicker for emergencies, starting it up every third or fourth trip and running it for fifteen minutes to make sure it stayed alive and 'kicking.' This is what I did with my old Katama...used the 50 hp 4/s for trolling and the kicker as standby for emergencies. But I'm going to give this one a try trolling. It's surprisingly quiet and not really smokey, and I won't be running up the hours on my 115. I was going to go out today, but the weather buoy said 29.1 gusting to 35 kts of wind at 5 am, seas 9.5x7, so my brother-in-law and I went to the lake, baked in the windy sun, and caught one nice trout between the two of us (guess who got the fish...hint: I NEVER can catch lake trout). Damn, the salmon are out there and I can't get at 'em, even with my new, huge, comfortable Outrage. Oh well, try it again Friday or Sunday.

Thanks for the info, Biggie. Any idea where I can get a copy of the manual?

Tony

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