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Converts 92 octane pump gasoline to 103-105 octane racing gas
†requires the use of the stock oval cover and a SE high flow air cleaner
as indicated in the dedicated instructions
indicator lights
PISTON KIT 68.00/+1.00 10.25:1 YAM YAMAHA 250 Converts 92 octane pump gasolineAll Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of todays cylinder bore compositions Wisecos state of the art computerized manufacturing facility is dedicated to
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