When two boats share the same hull type — in this case both the Yellowfin 24 Bay 2012 and the Yellowfin 34 2013 are deep vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Yellowfin 34 2013 measures 34,7 feet overall (2013), giving it roughly 9,8 additional feet of deck space compared to the Yellowfin 24 Bay 2012 at 24,8 feet (2012). Weight tells a clearer story for trailering families: the Yellowfin 24 Bay 2012 tips the scales at 305 lbs — 217 lbs more than the Yellowfin 34 2013 at 88 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The power gap is worth calling out. Rated to 1 050 hp, the Yellowfin 34 2013 has a 700-hp advantage over the Yellowfin 24 Bay 2012's 350-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Yellowfin 24 Bay 2012 carries 75 gallons versus 45 gallons in the Yellowfin 34 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Yellowfin 34 2013 is rated for 10 passengers, while the Yellowfin 24 Bay 2012 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Yellowfin 34 2013 could be the deciding factor.
Bottom line: Choose the Yellowfin 34 2013 if your priority is putting more people on the water — it handles 10 passengers and at 34,7 ft it has the deck room to back that rating up comfortably. The Yellowfin 24 Bay 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.