2. GENERAL INFORMATION STRYKER 125/150 ENGINE STOPS IMMEDIATELY AFTER IT STARTS Inspection/Adjustment Symptom Probable Cause Check if fuel reaches carburetor by loosening drain screw Fuel reaches Fuel does not Empty fuel tank carburetor reach carburetor Clogged float valve Clogged fuel filter Remove spark plug Plug not fouled or Plug fouled or Fouled spark plug discolored discolored Incorrect heat range plug Remove spark plug and install it into spark plug cap to test spark by making it contact the Fouled spark plug engine Faulty CDI unit Weak or inter- Faulty A.C. generator Good spark mittent spark Faulty ignition coil Broken or shorted high tension wire Test cylinder Faulty ignition switch compression (using a compression gauge) Worn cylinder and piston rings Normal Abnormal Blown cylinder head gasket compression compression Flaws in cylinder head Worn valve seat Seized piston Check carburetor for clogging Not Clogged Clogged Clogged carburetor jets Check ignition timing Faulty CDI unit or A.C. Correct timing Incorrect timing generator A.C.G. flywheel not aligned Check carburetor pilot screw adjustment Mixture too rich (turn screw out) Correctly adjusted Incorrectly adjusted Mixture too lean (turn screw in) 2-22