2. GENERAL INFORMATION STRYKER 125/150 POOR PERFORMANCE (AT HIGH SPEED) Inspection/Adjustment Symptom Probable Cause Check ignition timing Faulty CDI unit Correct Incorrect Loose A.C. generator stator Faulty A.C. generator Check valve clearance Improperly adjusted valve clearance Correct Incorrect Worn valve seat Check fuel tank for fuel supply Fuel flows freely Fuel flow restricted Empty fuel tank Clogged fuel tube or filter Check carburetor for clogged jets Not clogged Clogged Clean and unclog Check valve timing Correct Incorrect Cam timing gear aligning marks not aligned Check valve spring tension Not weakened Weak spring Faulty spring 2-26