1. GENERAL INFORMATION AGILITY RS 50 NAKED TROUBLESHOOTING ENGINE WILL NOT START OR IS HARD TO START Inspection/Adjustment Symptom Probable Cause Check if fuel reaches carburetor by loosening drain screw. Empty fuel tank Fuel reaches Fuel does not Clogged float valve carburetor reach carburetor Clogged charcoal canister Clogged fuel filter Faulty auto fuel valve Remove spark plug and install it into spark plug cap to test spark by connecting it Faulty spark plug to engine ground. Fouled spark plug Faulty CDI unit Spark jumps Weak or no spark Faulty A.C. generator Broken or shorted ignition coil Broken or shorted exciter coil Test cylinder Faulty ignition switch compression. Burned or worn cylinder piston Normal Low or no Faulty reed valve compression compression Blown cylinder head gasket Leaking crankcase Start engine by Faulty crankcase oil seal follow-ing normal starting procedure. Incorrectly adjusted idle Engine does not Engine fires but speed fire does not start Air leaking through intake pipe Incorrect ignition timing Remove spark plug and inspect again. Flooded carburetor Dry spark plug Wet spark plug Throttle valve excessively open Wait for 30 minutes and then remove the carbu-retor auto choke circuit hose and blow the hose with mouth. Not clogged Clogged Faulty auto bystarter 1-21