TM10-3930-660-20 Table 2-3. Mechanical  Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE  ACTION 1. ENGINE Step 1. 2. ENGINE Step 1. Step 2. Step 3. ENGINE CRANKS BUT FAILS TO START Refer to Starting System section of Electrical Troubleshooting, table 2-2. CRANKS BUT WILL NOT START-NO SMOKE FROM EXHAUST Check for fuel in fuel tank. Add fuel if required (see TM10-3930-660-10). Check for fuel shutoff solenoid or manual fuel shutoff valve not open. a. Tighten loose wires and verify that the fuel shutoff solenoid  is  functioning  para.  5-3. b. Check  that  the  mechanical  shutdown  lever  is  placed  in  ON position. Check for plugged air intake or exhaust system. a. Remove and clean air intake cap. Clean air inlet tube. 2-25