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Yoshimura rings

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ka-ja:
Hi,
     Any out there know of the where-abouts of any piston rings that would fit the old (458cc) yoshimura pistons, I have compression readings of 140,125,125,142 psi 1 to 4 cyls. and the two low ones come up to 145psi after oiling the bores, it seems to affect the centre two pots carburation!

paul G:
Ka-ja
              Try giving IMD pistons a ring he has loads of stuff.
Something might fit. If you google him he has a web site.

Regards,

ka-ja:
Cheers Paul-will do.---Ken

Dave_Canada:
Are you positive you have the 458 pistons? Every Yosh kit I have come across actually used the 466 pistons intended as a possible repair overbore from 458.

ka-ja:
Hi Dave,
            The piston kit was bought and fitted in 1985, pistons are full skirt pistons have "yos" cast near the gudgeon pin, were sized as 458cc ( 50cc over standard)and the box was labelled as "For Racing Use Only"-Ken

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