1. GENERAL INFORMATION MYROAD 700i TROUBLESHOOTING (XCITING 250 AFI) ENGINE WILL NOT START OR IS HARD TO START Inspection/Adjustment Symptom Probable Cause 1. Make sure engine stop switch is ON. 2. Put the side stand up. 3. Connect the diagnostic tool, then check EMS and correct problems. Empty fuel tank Clogged fuel pump Fuel reaches fuel Fuel does not reach filter injector fuel injector Faulty fuel pump Faulty fuel cut-off relay Remove spark plug and Cracked fuel hose install it into spark plug cap to test spark by connecting it to engine ground Faulty spark plug Fouled spark plug Faulty ignition coil Spark jumps Weak or no spark Faulty CPS Broken or shorted ignition coil Broken or shorted CPS Faulty ignition switch Remove the fuel injector, start the starter motor to check fuel injector operation. Faulty fuel injector Fuel supply No fuel supply Clogged fuel injector Faulty ECU Test cylinder compression Starter motor idles but crankshaft does not rotate Valve clearance too small Normal Low or no Improper valve and seat contact compression compression Worn cylinder and piston rings Blown cylinder head gasket Flaws in cylinder head Seized valve Improper valve timing 1-23