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Thread: SR400 Needs Oil Priming Too?

  1. #1
    Junior Member Rokrover's Avatar
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    May 2017
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    Cochise County, SW Arizona
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    29

    SR400 Needs Oil Priming Too?

    Iíve followed the threads about the SR500 losing oil pump prime and the service manual procedure on p. 3-30 after a total rebuild.
    http://www.sr500forum.com/forum/view...p+prime#p49489

    However, the service manual for the SR400 omits any reference to the necessity of manual priming so I wonder thereís been some some upgrade / redesign?

    I still think it good practice for even the SR400 after a regular oil change to add some oil back into the crankcase through the breather spigot and fill the filter housing through the bleed screw on top. It was not reassuring to see how long it takes fresh oil to pump back up to the rocker box otherwise.
    2017 SR400 / 2017 SCR950 / 1979 SR500 / 1987 Sun Classic G3E
    "We cannot solve our problems with the same thinking we used when we created them"

  2. #2
    Yes, it is still basically exactly the same engine...

    SR
    ...'Any unnecessary items on the bike, that it doesn't really need, shouldn't be there!'. (Cafť racers creed). SR..

  3. #3
    Senior Member chunk's Avatar
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    Dec 2015
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    Approximately 130 miles north of Los Angeles, California
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    196
    Yeah, it can be a long 30 seconds or so waiting for the oil at the bleeder.

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