It's suposed to have a return spring there. Hes right about the sprocket cover, I've got a poxy peice of alloy plate there to keep the nazi's at bay, got me rooted why you have to have a sprocket cover on the engine but the rear sprocket and wheel is I guess perfectly safe?...one of those little mistereys. Oopps, shouldnt have said that,now the Suzuki nutters will make this a 25 page nightmare....sorry guy's and Allison.