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    Vertex - Piston Kit (Kawasaki)

    Product Code: VERTEX-PISTON-KIT-KAWASAKI

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    Vertex Pistons Kits (Kawasaki)

    Vertex manufactures some of the best piston kits on the market! By incorporating feedback from factory race teams, Vertex is able to give their team of powersports enthusiasts acute details to ensure the quality and performance of each Vertex Piston Kit. As a premier brand of high performance aftermarket replacement pistons, Vertex is capable of offering multiple piston kits with various bore sizes to customers worldwide. Whether you’re an elite racer, weekend warrior, or just twistin' throttles for fun, Vertex has you covered with their high quality piston kits at an affordable price!

    Kawasaki Vertex Piston Kawasaki:

    • All piston kits include:
      • the piston & rings
      • the wrist pin & circlips
    • All pistons are:
      • Heat treated with a T-6 hardening & tempering cycle
      • T-Box forging from 4032 aluminum alloy
      • Precisely machined to match your cylinder bore to maximize power & performance

    Kawasaki Vertex Piston Kit Options:

  • Forged Replica Piston 
      • standard bore piston with stock compression ratio (13.4:1 for the 2018 KX250F)
  • Forged High Compression Piston
      • high compression ratio (14.3:1 for the 2018 KX250F)
      • increased performance
  • Forged GP Racer's Choice Piston 
      • high compression ratio (13.9:1 for the 2018 KX250F)
      • maximizes power & performance
      • unique profile, design, & shot peened dome 
    Vertex Piston Kit Installation Tips:

    After disassembling the cylinder head and the cylinder, it's necessary to measure the actual cylinder diameter (1), using a dial bore gauge. 

    When actual bore size is known then it is time to pick the right VERTEX piston to fit your bore size, respecting the clearance suggested with the cylinder.

    Attention must be paid to any markings (i.e. T) on the rings surface: always position the ring with the written part on the top side.

    To assemble the rings on the piston you must start from the oil ring and introducing as first the spring (2) paying attention to not place one on the top of the other the two extremities.

     After setting the two foils one up and the other down at direct contact with the groove, taking care that the open tips must be at 1200 from the spring open tips.

    We are now ready to assemble the compression ring(s) into the piston groove(s): first of all pay attention to not crush or damage the ring during installation, every precaution should be taken not to compromise the ring integrity with the groove and to not reduce the rings retaining pressure.

     CLICK HERE FOR MORE DETAILED INSTRUCTIONS (PDF)