Crazy thought- thru hull exhaust.

I have a 1978 Correct Craft. Any ideas on reducing exhaust odor? Will new exhaust flappers help reduce does it really matter? Mine are a bit tore up... back seat passengers sometimes complain of exhaust odor, which is normal for an older engine duh. It has gotten better b/c my mechanic explained to me that people often put too much oil in my particular engine so since we dialed it down it's been much better. I was wondering if I swapped to a solid platform with no gaps and just solid wood and potentially extend it out a few inches it might give the exhaust a little more of a barrier to transmit odors and wash out with less backdraft ...That yellow correct craft gives me a lump in my pants.

Oh, and flappers have no impact at all, they are just there to avoid taking a wave up the tailpipes with the engine off. Most older boats don't have them anyway.

Pete, sometimes I just have to push back a bit. Avoid having passengers in the back seat of his boat? The guy has a very cool classic boat, if I was him I'd have passengers back there and cruise around the lake every chance I got. That's not the answer.

Ok, you said minimize, I said avoid. Pretty similar, but I agree not exact.

With a following breeze, my '63 gets fumes in the back seat at speeds in maybe the 8-18 mph range. I have no platform. But I've had so much fun in that boat cruising around with friends/kids in any and all seats that the last thing I'm going to do is minimize back seat usage. I usually just add some throttle and get on plane, with the smaller wakes and speed generated breeze the fumes are gone.

Thinking Pete has been sniffing too many exhaust and glue fumes, lmao!!

Get carb worked out, if you feel problem still exists then by all means add barrier as mentioned above. The factory did it at some point, early 90's IIRC for the open platform, today they are all closed platforms for this exact reason.

I'd rather poison the fish than my passengers, so this looks intriguing..... the marine fresh air exhaust adaptor I always wondered if you could do and I had to google it to see. Wow that's brilliant. No soot on my transom. I need a new platform anyway I might go solid and see how that does. I am not having gas or buring oil types of smells, it's just exhaust and obviously that's part of having a 78 boat but I'll have to investigate some more since I'm always the selfish bastard driving :)

My buddy Shawn bought Brian's (Hotboat) '91 with the through hull exhaust. I have to say it sounds sweet. I thought it would be obnoxious to foot behind, but I was wrong. At 100' and at water level, it sounds like my boat. From the shore, it sounds a little like a drag boat. The other nice thing is that it's not too load inside the boat.