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Older FS-120

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Old 11-14-2004, 11:07 PM
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lennyk
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Default Older FS-120

Just got what seems to be the first generation FS-120 4 stroke NIB with twin valve covers.
Are there any quirks with this engine ?

I plan to use a 15x6 prop with 15%.

L
Old 11-22-2004, 03:38 PM
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Bax
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Default RE: Older FS-120

The old FS-120 engines (pre-Surpass) had absolutely no quirks. Just break in very, very rich, and take your time. It won't deliver as much power as teh Surpass version, but will be very good handling.
Old 11-28-2004, 12:28 PM
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minime04
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Default RE: Older FS-120

I got an older 120 w/pump too but i like to know how to hook up fuel line?
1 on the right ?
1 on the left ?
1 come out the middle with blue fuel line to carb?
I know one is for pick up but whats the other one.
Thank you so much...........
Old 01-24-2005, 04:01 PM
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harve202
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Default RE: Older FS-120

lennyk refers to os120 with two rocker arm covers. I notice that newer 120's have only one cover. Is there a shortcut way to tell which model is which? I too, have obtained an OS 120 with two rocker arm covers but can not find info about, etc. OS website doesnt show such. Can you help directly or by reference? harve202
Old 01-25-2005, 01:06 PM
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Bax
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Default RE: Older FS-120

The O.S. 1.20 with two rocker covers is the old FS-120 (non-Surpass), as we mentioned above. O.S. only made one version during its production run. The Surpass-series replaced it.

The old pre-Surpass engine went out of production in the late 1980's, and parts for it are no longer available from us or from O.S. in Japan.

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