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Ys fz70

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Old 04-14-2012, 06:33 AM
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riadh
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Default Ys fz70

I had to take the needle socket out of the engine to be able to tighten one of the engine mounting screws. This engine was running great and with no issues .whenIwanted to reinstall the needle socket back to the engine I noticed that it has only two o rings whereas the schematic diagram shows that there are three o rings there. I believe that it did have 2 o rings initialy; ie not me losing it in the process of taking it off. As I mentioned earlier the engine ran great .Is it possible that it came with two o rings due to change of design ? Shall I run it and see if there is any difference in performance?
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Old 04-14-2012, 07:20 AM
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tkline
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Default RE: Ys fz70

I would run it and see.
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Old 04-17-2012, 11:34 AM
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Default RE: Ys fz70

I'll pull the needle out of mine tonight and look for you.
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Old 04-17-2012, 03:42 PM
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riadh
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Default RE: Ys fz70

Great ,thank you.Also please let me know where would the third o ring ,if any, is siting.
Cheers .
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Old 04-20-2012, 10:05 AM
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petec
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Default RE: Ys fz70

Sorry for the delay. I took mine apart and it only has 2 o-rings on the seat.
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Old 04-21-2012, 08:11 PM
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riadh
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Default RE: Ys fz70

Thank you Petec .I am sure the engine would still be happy with two o rings.
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Old 04-25-2012, 10:01 AM
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Default RE: Ys fz70

You can add a third O-ring between the steel ring and the carb body if you so desire. It is redundant.
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Old 04-26-2012, 07:04 AM
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riadh
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Default RE: Ys fz70

Yes I would think so as well as there is some sort of an o ring groove there .But as I found only two and Petec confirmed that his has only two o rings also it seems that the schematic drawing is not updated.I will be running my engine this weekend and see if there is any change in performance.
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