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What oil is used for a 1981 Yamaha 400s motorcycle and how do I check the level

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  • Mike Gilbreath
    Mike Gilbreath May 16, 2017

    I run 15-40W Valvoline diesel synthetic blend in most motorcycles with wet clutches. Do not run pure synthetic or you risk clutch slippage. Left front of engine there is a black oil dip stick /filler cap. You screw it in after cleaning it to read the oil level. Do not overfill !

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  • Yamaha Master
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Call your yahama service center and get the oil specifications for engine and gear box/clutch

Posted on May 16, 2017

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Posted on Jan 02, 2017

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