Noticed waverunner hesitation on take off after less than 20 hours onboard now at dealer for over a month supercharger ass.y is avail but yamaha wants to rebuild it but parts are backordered so now part as arrived but gasket is backordered customer 5 star service is a joke i dont know what to do except warn everyone.have extended warranty which is useless warranty is being used up in dealers back yard last yamaha i will ever purchase