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which version OS 120 do i have?

Old 10-15-2006, 11:31 AM
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tukkus
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Default which version OS 120 do i have?

i have an OS 120 that i bought used and i'm not sure what version it is...non pumped

on one side it says FS-120 surpass and on the other it says "OS FS series"
Old 10-16-2006, 01:19 PM
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Bax
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Default RE: which version OS 120 do i have?

You have the O.S. FS-120 Surpass E, which is the non-pumped version.
Old 01-27-2007, 06:02 PM
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Redneck Shaun
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Default RE: which version OS 120 do i have?

Well I'm confused[].
I just got a used one that says.

FS- 120
Surpass On one side


OS
FS
Series on the other.


But it has a pump on the back? that says in,out,R on the pump. It looks like the "E" type if I look at the OS website. What model do I have?
Thanks
Shaun
Old 01-27-2007, 06:24 PM
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Redneck Shaun
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Default RE: which version OS 120 do i have?

After doing some more looking I see that I have a Surpass 1. Can you tell me which hose goes where?
IE.....
Thank you
Old 01-29-2007, 11:34 AM
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Default RE: which version OS 120 do i have?

"IN"--fuel from tank
"OUT"--to carburetor
"R"--return line to fuel tank.

The fuel tank will require one vent line that goes into the front-top of the tank and exits the aircraft at the bottom; one fuel pickup from the clunk inside the tank to the "IN" nipple on the pump; one line from the "R" nipple on the pump that goes into the front-bottom of the tank. The vent line is not attached to anything, but is left open to the atmosphere.
Old 01-29-2007, 03:53 PM
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Redneck Shaun
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Default RE: which version OS 120 do i have?

Thank you VERY much Bill..
I'm suprised this thing even ran. It was plummed as you stated. EXCEPT...........There are "T's" that connect the two of the lines together..
The (R)line, and the (out)line are connected by "T's . I have no idea why???[]
Thanks again for your help.
Shaun
Old 01-31-2007, 11:40 AM
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Default RE: which version OS 120 do i have?

People who did not know how to properly-adjust the carburetor had too much fuel going to the carb. A too-rich idle was a result. If the engine's adjusted properly, you won't need that interconnect.
Old 02-01-2007, 02:50 PM
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Default RE: which version OS 120 do i have?

Does any one out there know where I can get needle valves for older OSFS 120 engines? I have 2. 1 is a pumped version, both are surpass.

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