Valve Spring Compressor For yz400f

The question is what the diameter of the retainers and the lifter bores are.

Oh, that's the part I didn't understand.

I'll go measure them.

Thanks Gray.

The lifter bore is around 22.75mm and the od of the retainer is around 19.25mm.

So I don't know if the 23mm-21.5mm adapter would work?

Probably the 19mm.

Ok. Thanks Gray.

Now I just need to get my 400 rebuilt and back together. :thumbsup:

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