Suzuki DF200/DF225/DF250 V6 4-Stroke Outboards Service Manual, Page 237Get this manual
POWER UNIT
4On the PORT side bank, loosen and remove twelve (12) cylinder head bolts in the order indicated in figureRemove cylinder head assembly and head gasket
5On the STBD side bank, loosen first, then remove thirteen (13) cylinder head bolts according to sequence in figureRemove cylinder head assembly and head gasket