I have read to tow a PWC you need to clamp off a hose to prevent water feeding back into the engine. I saw this in the manual also but it is not clear to me which hose it is, the skis are 06 RXT. Thanks in advance.
If you do a search for that... you will find the pic. Someone posted a few good pics over the summer for the 4-tech skis. I know that is't the exact answer you wanted... but the info is on this site.