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Kart Specalties Inc. is now manufacturing Yamaha pistons and shipping a revised version. These are identified by the black box. This new version will be phased in as the older blue box inventories are depleted.

Also there are several new sizes:

These additional sizes will be helpful in prol;onging the cylinder life, and are WKA approved.
A submission to IKF and is still under consideraation.

Be prepared to drop the cylinder as the new piston is slightly higher from the pin to the top.

_________________
Jean Stafford

"Never argue with an idiot. They will wear you down to thier level, then beat you with experience."
"Nothing is foolproof, for a sufficiently gifted fool."