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os 120 pumper instruction manual needed

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Old 09-06-2003, 01:28 AM
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obie1
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Default os 120 pumper instruction manual needed

I am in need of an instruction manual for the os 120 four stroke with pump. Can anybody help me out
pm me or send email
thanks
rich
Old 09-06-2003, 11:31 AM
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seanychen
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Default os 120 pumper instruction manual needed

http://www.os-engines.co.jp/english/...al/fs120s3.pdf
Old 08-23-2005, 10:46 AM
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proulxlaw
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Default RE: os 120 pumper instruction manual needed

seanychen:
I have an OS 120 pumper and I can't figure out which one it is. I bought it used on a .90 Goldberg Sukhoi from a guy at the field who's moving and wanted to clean out his stable. It's not a Surpass III. How do I tell the difference?

The problem is that I can't seem to find a low speed needle valve screw.
Old 08-23-2005, 01:40 PM
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Bax
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Default RE: os 120 pumper instruction manual needed

If the pump has a brass screw in the center, you have the original version. If the pump has no brass screw and the carburetor has a velocity stack, you have the FS-120 Surpass II.
Old 08-25-2005, 09:26 AM
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proulxlaw
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Default RE: os 120 pumper instruction manual needed

Bax:
I've done a little research and the motor that I have is the OS (1990) FS-120S II. Could you please email a PDF copy of the instruction manual? This would be super if I could get my hands on a copy. email it to ([email protected]).

Thanks so much for your help.

Bob Proulx


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