should be a coloured link on your chain and it should align with the triangle shape on the exhaust sprocket [10am] and the same on your inlet sprocket but at 2pm
and on your crankshaft sprocket should have an aligning mark and should be in line with another coloured link [ 4pm]
so in theory all 3 line up at same time then your timing should be oki but it doesn't mean your tensioner is fubar or your oil jet is blocked