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What weight of Oil should I be running in my 82' Seca400

SecaBoy400
in Yamaha Workshop

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Posted

Only had my bike for a short while, got it running good and have been putting lots of miles on it. So i'm guessing its due for an oil change, but I really have no idea what weight of oil its suppost to have.

Any one got clue ?

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    • Author

    Found the answer, another member sent me a link to a pdf of the xs360/xs400 manual.

    it shows:

    20W/40 if the average temperature is above 40 degrees farenheight

    10W/30 if the average temerature is below 59 degrees farenheight

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