Just a quick question...2002 Seadoo Speedster 240 Merc EFI...there is a oil fill mark on the large plastic oil reservoir where you add the oil to...it is about half way up the reservoir...is that mark the "fill to this level" mark, or is this the "low" mark? Should the large reservoir be "full" to the top, or just up to this mark 1/2 way up? Thanks for the help in advance!!