need some help with timing-trx250x

hey guys,i'm stuck in a jam with setting up this trx 250x we're working on,i was told to look for the 3 marks on the free wheel,and to line the marks up thru the threads for top dead center,now the problem i have is where in relation is the cam lobes to the 2 marks on the sprocket that need to be even with the head,should the lobes be up or down for the 2 marks to be even with the head,i'm trying not too smash anymore valves,thanks

at TDC compression stroke you should have your valve clearance (normally .003-.005) between the arm and valve. does this help????

put it on tdc with cam lobes down