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Thread: any damper cleaning tricks?

  1. #1
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    any damper cleaning tricks?

    Unlike my other bikes the damper assembly on the CB (#7 below) does not come apart, and it does feel like there is some accumulated sludge at the bottom--didn't all come out after the first trip through the parts washer. Just wondering if anyone has a particularly inventive way of getting it clean inside, other than a soak in good strong solvent and working the plunger up and down?
    cheers
    Mike
    Screen Shot 2022-10-26 at 9.07.49 AM.png
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    1973 CB450

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    I have a piece of 2" ABS pipe with a cap glued on one end that I put the cheapest atf fluid I can find in and pump the damper, let sit and pump again a couple times. I usually spray WD40 into the damper as a first step.

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    Quote Originally Posted by Boomer343 View Post
    I have a piece of 2" ABS pipe with a cap glued on one end that I put the cheapest atf fluid I can find in and pump the damper, let sit and pump again a couple times. I usually spray WD40 into the damper as a first step.
    Just the type of thing I was asking for, thanks. Didn't think of using ATF but makes sense. I feel the plungers go past a brief resistance (contour of tube inside?) about 1" before it bottoms out, just around where the plunger passes the damping holes. Any idea what that is / its function?
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    1973 CB450

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    Does it feel the same with the ATF?

    Have no idea of why ....

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