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Old Aug 23, 2015, 06:56 AM
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Club OS

I have been searching the Fora for a Club OS, anybody interested in having one. I just acquired an early 1.20 Surpass, I am trying to determine exactly which series it is from. It has some serious compression and turns smoothly. Any Surpass experts just jump in.
My OS list.
LA .15 plain
LA .25 blue
LA .46 Diesel conversion blue
LA .65 Diesel Conversion blue
OS .56 Alpha, new gift from daughter
OS Surpass 1.20
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Old Aug 23, 2015, 08:22 AM
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Good typo. A Fora could club the OS. I think the Surpass is a fairly new one. I have a .91 that looks similar. It may be 15 years old or so. I seem to have quite a few OS examples. A few blue and clear LA .10s, .15s, .25s, and .40s, and a crusty blue .46. Some old FSR .40s, FX .46, AX .25 , .46, .55. some older FP .10, .15s, couple .32 SX and an old F .32, maybe a .28. There could be more? SF .46. They give pretty good sevice. Only the one SX .32 is starting to peel, but just a bit at the top. Still might go if I put in a bearing. (got it used as well as most of them)
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Old Aug 23, 2015, 08:34 AM
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That's an FS-120S-E. This is the Surpass 1.20 without a pump. OS timeline shows release in 1989, but it was made for a very long time. I'm not sure what the E designation meant as the Surpass II with the pump (actually two versions one with C12 carba nd one with C13) was released a little later.

I'm a big fan of OS four strokes. I have diesel conversions, ignition, my bored over FS-40, and I'm still working on the glow gas FS-120S. I even have several CAD models of engines.
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Old Aug 23, 2015, 08:36 AM
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Quote:
Originally Posted by aspeed View Post
Good typo. A Fora could club the OS.
Fora is the plural of forum.
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Old Aug 23, 2015, 09:05 AM
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I was thinking about what I have left in OS engines.
OS .10FP
Max .15
Max .20
Max .35
.40FP two of them on a twin
.40LA set up as a diesel
.26 Surpass, two on a twin
.48 Surpass I might have two of them too for a twin project I never started
FS-60 Open rocker four stroke
.70 Surpass
.91 Surpass
FT 1.60 Twin
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Old Aug 23, 2015, 12:28 PM
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The pope has
46 LA
46 fx
46ax
55ax (x2)
120ax
30 fs
52fs
70fs
I think that's it but I could be wrong . Cheers the pope
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Old Aug 23, 2015, 12:48 PM
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OS Club

I rally like my Saitos and Super Tigres, but I must admit I have quite a few OS's also:

2x FP .10
2x FP .15
2x FX .25 on a twin
FS .26 Surpass
FS .30 Surpass
2x SX .32 on a twin
5x SF .61
2x 91 FS
AX .95
1.08
FX 1.60

These all run great - heck, I like all engines!

Jim
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Last edited by SRQFlyer; Aug 25, 2015 at 09:16 PM. Reason: really senile - forgot another handful!
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Old Aug 23, 2015, 02:16 PM
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Quote:
Originally Posted by gkamysz View Post
Fora is the plural of forum.
Yep, you are right, I just checked. Wonder what it means in the Ukrainian language. Just thought, I have a .20 and .30 too. I never really knew I liked them that much.
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Old Aug 23, 2015, 02:26 PM
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Thankyou gents, we have a beginning, Greg thanks for the FS-1.20S-e mention, I saw that designation several places but didn't put it together with my engine. I only understand the UK language without the rain.

PS, here are a couple of links supplied by a friend in Ct.
http://www.osengines.com/manuals/index.html
http://www.osengines.com/parts/discontinued.html
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Old Aug 23, 2015, 03:00 PM
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Get a methanol buzz .
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OS :

.48 Slurpass

.61 FX

.91 Slurpass
FT-120 II Gemini
FT -160 Gemini (two of them)


All the two strokes are on the way out .
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Old Aug 23, 2015, 09:20 PM
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<----loves OS Engines.
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Old Aug 24, 2015, 01:46 AM
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The E stands for the Economic version of the 120S without fuelpump and pressure regulated carburettor, a basic suction feed engine dating back to 1992
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Old Aug 24, 2015, 06:25 AM
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Thanks Reginald, that's usually the best version.
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Old Aug 24, 2015, 07:09 AM
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Get a methanol buzz .
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Dave ,
The .61FX just came off the plane . Finally got the last two sroke-cycle off line . Let me know if you want to add that one to your OS collection . Our hangar will be two stroke-cycle free at last !
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Old Aug 24, 2015, 07:39 AM
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Quote:
Originally Posted by Gary Cee View Post
Dave ,
The .61FX just came off the plane . Finally got the last two sroke-cycle off line . Let me know if you want to add that one to your OS collection . Our hangar will be two stroke-cycle free at last !
I kicked the two stroke habit years ago. I feel better, now.

My OS engines are: .
52 Surpass
.91 Surpass
320 Pegasus
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