looks like this is where the wetherby motor thing stands,the motor did have the correct sleeves in the cylinders that were listed,so in sbt's corner the motor was probably assemembled o'kay,problem is there are basically two versions of the 1050 motor,one with boost ports and one without,the 98 and later 1050's had no boost ports,97 and earlier did,running a late motor in an early hull should only result in lower rpm's and a rich midrange,running an early motor in a late hull would create a lean condition and burn it up,the carb jetting and different sized carbs used across all those hulls causes this.now i figure sbt will say,oh the guy who had the ski ordered the wrong motor,i say how???what idiot doesn't know the year of his ski,and on top of it why doesn't sbt(knowing that there are two very different setups and what will happen)stress how important it is to get the year right and that someone should double check to make sure(on both ends)that a thousand dollars doesn't get pissed down the drain.but hey why should sbt care???they got their money right???besides whats more likely,you don't know what year your ski is??or some flunky grabbed the wrong motor by mistake??