(2) Engine Turns Over When Cranked but Does Not Start.
(a) Fuel supply valve closed. Open valve.
(b) Empty fuel tank. Fill tank.
(c) Fuel system faulty. Refer to paragraph [31].
(d) Ignition system faulty. Refer to paragraph [32].
(e) Battery weak or dead. Refer to paragraph [34].
(f) Insufficient compression. Refer to step b, below.
(3) Weak Compression. Refer to step b below for test.
(a) Improper valve tappet adjustment. Adjust (par. [43]).
(b) Valves sticking. Use dry‐cleaning solvent to free valve stems in guides.