I have a 2002 358, it has Bravo 1 XRs on it. The problem I'm having is, the left drive seems to be Pressurizing the reservoir and dumping all the drive oil into the bottom of the boat.
Any suggestions !!

How is it being serviced/filled with oil?

Had same problem. Replaced cap. The red dot in cap was gone. fixed my problem. $8 bucks

From the bottom plug with a hand pump.

I'll need to check it out tomorrow. Thanks for the info.

The "red dot" is a flapper valve that maintains around 23 psi pressure to help keep water out of the unit. Had many customers filling the monitor bottle all the way to the top and spewing gear oil into the bilge. On boats that like to dump gear oil, usually heavy, high loads, or high rpm, I will replace cap and fill just enough to keep the alarm from going off. Remember if you bench fill the drive then install, it will burp so check after first run.

Thanks for the information. I think I will replace the cap and check it again.