2-CYCLE GTS 120 ENGINE SERVICE MANUALTable of Contents – Page 1 of 1PREFACEI. GENERAL INFORMATIONSAFETY INSTRUCTIONSMAINTENANCEMODEL AND SERIAL NUMBERSTWO-CYCLE ENGINE THEORY AND OPERATIONCARBURETOR THEORY AND OPERATIONSPECIAL TOOLS LISTII. MAINTENANCEAIR CLEANERSPARK PLUGEXHAUST SYSTEMDECARBONING CYLINDER HEADIGNITION TIMING (MODEL 47PZ2 ONLY)IGNITION TIMING (DIAL INDICATOR)CONTACT POINTS AND CONDENSER MODEL47PZ2 ONLYIGNITION COILGOVERNORGOVERNOR OPERATIONFUEL TANKCARBURETORSTORAGEIII. TROUBLESHOOTING AND TEST PROCEDURESPRELIMINARY TROUBLESHOOTINGENGINE BRAKE AND IGNITION SWITCHBBC APPLICATIONSFUEL TANKTESTING COMPRESSIONCRANKCASEENGINE TROUBLESHOOTING CHARTIV. ENGINE REMOVAL, DISASSEMBLY, ASSEMBLY AND REPAIR INSTRUCTIONSENGINE REMOVALENGINE DISASSEMBLY AND REPAIRRECOIL STARTER REPAIRCARBURETOR REPAIRENGINE ASSEMBLY AND REPAIRSERVICE DATA SPECIFICATIONS