Mercury 6 HP Mercury weighs only 58 lbs and comes with an integrated gas tank. the Mercury 6 hp Model 6MLH is equipped with the 20 inch long shaft, tiller steering and manual rope start. Standard features of this single cylinder outboard engine include forward, neutral and reverse shift, and access for an external gas tank. Mercury’s factory warranty is included. Free Shipping along with discounted prices means your online outboard search stops here!