I tool my cherry, box stock 98 ZXI out today to test it for the pupose I bought it for- a baddass little barefoot towboat. It's Great! Lots of hole, huge midrange and good top. I did have some bogging at the holeshot. It is not noticeable when riding 1 up but pulling a skier or footer there is a beat or two of hesitation before the motor starts to wrap up. Im a complete rookie here and looking for ideas; gunk in the carbs? Something else?