I have it all put back together and now the rear wheel hardly turns. I have about 3/4" play in the chain. I put on a Sun Star 16T front sprocket and a speedo healer. I have the bike on a race stand and as I am turning the wheel by hand and get only 1 revolution. I started it and in 1st gear at 8 mph (still on the stand) as soon as I pulled the clutch in it had about 1 more revolution. That isn't right is it? If not what did I do wrong? I did tighten the nut on the front as tight as I could get it using 3/4 drive ratchet and a cheater bar.