crankcase baffle, does “ex” have it and “w” not?

98-91 300 fourtrax trx 2×4: Clymer shows a crankcase baffle installed for this engine with no exception noted for model differences. Neither of the two engines I’m combining to make a good one seem to have ever had one regardless of bolt hole and mating surface to accept one. Parts diagrams show it available to order for sport "ex" but not for utility "w". What say y’all gurus?

crankcase baffle, does “ex” have it and “w” not?

98-91 300 fourtrax trx 2×4: Clymer shows a crankcase baffle installed for this engine with no exception noted for model differences. Neither of the two engines I’m combining to make a good one seem to have ever had one regardless of bolt hole and mating surface to accept one. Parts diagrams show it available to order for sport "ex" but not for utility "w". What say y’all gurus?