TM 10-3930-669-20 8.  ENGINE DOES NOT DEVELOP FULL POWER (CONT). KNOWN INFO Engine operates. Fuel OK. Throttle adjustment correct. POSSIBLE PROBLEMS Intake/exhaust valve adjustment incorrect. Fuel lines loose or damaged. Fuel injector(s) faulty. TEST OPTIONS Visual inspection. REASON FOR QUESTION If valves are not adjusted correctly, engine will not develop full power. 2-106