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O.S. 120 II gemini exhaust extentions

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Old 04-10-2017, 02:15 PM
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extra300crazy
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Default O.S. 120 II gemini exhaust extentions

Mr. Baxter,
I've aquired a NIB O.S. 120 II Gemini and would like to use the flexible exhaust extentions that O.S. sells for their single cylinder 4-strokes. I believe the Gemini has an 11 mm exhaust thread. Which flexible extentions in either 120mm or 240mm length would fit. Would extensions even be advisable due to the possibilty of over heating from too much back pressure.
Any help offered would be greatly appreciated.
Karl

Last edited by extra300crazy; 04-17-2017 at 02:11 PM.
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Old 04-17-2017, 10:11 AM
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These fit the FT-160, so should work:

OSMG2672 72108110 FLX PIP FS70-91 240MM US$49.99
OSMG2684 72108100 FLX PIP FS70-91 120MM US$37.99

These parts can be ordered through any hobby retailer who sells O.S. Max engines and accessories.
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Old 04-17-2017, 02:24 PM
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Mr. Baxter,
Thank you for your response. I see that a third one is offered at 170mm long, I believe with the same thread. Part # 72108120. This should work nicely for me, thanks again.
Karl
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