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Old 06-01-2017, 11:02 PM
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Saito 160 twin question????

I have a Saito 160 twin that I disassembled years ago and oiled up for storage.


The exhaust and the intake both have little collars where they enter the head. Can't find the parts sheet to ID them.


One set is chrome ish and the other is kinda bronze looking. (The bronze color is on purpose and not from being discolored. My guess it is heat treated for exhaust, but don't know for sure.)


Does anyone know which is for the exhaust and which is intake? Thanks
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Old 06-02-2017, 06:41 AM
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I may be able to help, but could you please attach some pictures.
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Old 06-02-2017, 06:17 PM
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Thanks for the reply. Now I can't locate it. The last time I got it out, I recall I didn't remember, which went where , so I put it back. Now we have moved and it is in a box somewhere safe.
The blowup drawing I had showed the parts, but made no distinction
as to which was which. When I locate it, I will post pics and the blow up sheet. Thanks.

After looking online I think it is an OS-160 Gemini. Will have to find it for sure now.
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Last edited by Instructor; 06-02-2017 at 06:41 PM.
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Old 06-02-2017, 08:48 PM
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i just looked at my O.S. 300 twin, it has the brass washer on the exhaust, and the aluminum on the intake. I believe the brass washer is to ensure the pipe stays sealed as the steel expands and contracts when heated and cooled.
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Old 06-02-2017, 10:59 PM
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Thanks Corn.
That was my thoughts.
Great motors.
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