1977-2000 Suzuki DT5/6/8 Outboards Service Manual, Page 49Get this manual
INLETCASE
loosen tighten these bolts, sure to take the usual care, torquing them in the sequence indicated:
LOWEROIL SEAL HOUSING Lower oil seal for crankshaft takes its position, as shownNote that its main lips bottom sideUpper oil seal for drive shaft takes its position with its main lips coming top side