I have a 1998 Merc 350 with a 2 bbl carb with a Bravo III on the back. I bought the boat last year and noticed this year that my oil consumtion is up quite a bit and the motor puts out a little bluish/black smoke upon startup (for about 20-40 seconds). I also have to bring the RPM's up to 800-1000 for a minute or so until it will run clean after I start it. I have fogged it last fall according to the engine manual and stored it indoors with the engine compartment cracked for ventalation. Other than that, after warm-up, the motor runs beautifully. Oil consumption is about a quart every 15 hours or so.
Thanks
Thanks