Just bought a 78 T140E with overhauled engine. I only have a few hours running time on it. When I started it this evening I could here a snapping sound, I discovered the outer head bolts on the right side were loose. I was getting compression leak at the head gasket. Looking through the manual I got in the mail just this afternoon I see I was to have re-torqued the head. Do I need to remove the rocker boxes to get to the four inner bolts, or can I just remove the rocker box bolts to gain access. I do not have the special tool listed 61-7010 to tighten those bolts, is there something I can substitute. Which of the bolts are 3/8 which are 5/16 so I get the torque specs right. I can tell right now that I have a lot to learn about these bikes. I have kept a 63 TR4 sports car on the road for 40 years. I have an early 50's Alfa powered one off sports/racer and a Lancia Beta. I should be able to figure this thing out, eventually.