1. GENERAL INFORMATION PEOPLE 125/150 POOR PERFORMANCE (AT HIGH SPEED) Inspection/Adjustment Symptom Probable Cause Check ignition timing Faulty CDI unit Correct timing Incorrect timing Faulty pulser coil The woodruff key in the Check carburetor pilot crankshaft is not fix position. screw adjustment Improperly adjusted valve Correctly adjusted Incorrectly adjusted clearance Worn valve seat Check fuel pump for fuel supply Empty fuel tank Clogged fuel tube or filter Fuel flows freely Fuel flow restricted Clogged Fuel tank cap breather hole Faulty auto fuel valve Check carburetor jets for clogging 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 1-21