Rareelectrical 81.25 mm Top End Rebuild Kit 010-827-21 for Yamaha 1100

RAREELECTRICAL top end rebuild kit 010-827-21 is sized at 81.25 mm, or 0.25 mm over the stated 81.00 mm standard bore. The kit is specified for Yamaha 63M approximately 1050cc 3-cylinder 2-stroke engines and includes three pistons, three ring sets, three wrist pins, wrist pin bearings, six circlips, and head, base, exhaust, and intake gaskets. Cylinders must be bored to 81.25 mm before installation.