The famous Japanese champion and world class jet ski rider recently announced that this year he will be racing on a Yamaha private team and not the HKS Team. Ishahai has kept the prototype hulls made my Yamaha Japan that he was using last year. However he will not be getting any kind of support from HKS. Until now the tuning of his current Yamaha 1.8 liter power plant is still on a basic level.
