OHV GTS 150 ENGINE SERVICE MANUAL
Table Of Contents – Page 1 of 4
PREFACE
SAFETY INFORMATION
SAFETY TIPS
SPECIFICATIONS
GTS 150 ENGINE SPECIFICATION
GTS 150 CARBURETOR SPECIFICATIONS
GTS 150 FASTENER TORQUES
TOOL REQUIREMENTS
TROUBLESHOOTING
ENGINE DOES NOT START WHEN "COLD"
ENGINE WILL START "COLD", BUT WILL NOT START "HOT" ENGINE DOES NOT PRODUCE SPARK
ENGINE HAS LOW COMPRESSION ENGINE FLOODED WITH FUEL ENGINE LACKS POWER
BENT PUSH ROD
ENGINE SURGING ENGINE BACK FIRES ENGINE AFTER FIRES ENGINE OVERHEATS
ENGINE VIBRATES EXCESSIVELY ENGINE CRANKSHAFT WILL NOT TURN
ENGINE PRODUCES MECHANICAL KNOCKING SOUND PRE-IGNITION
ENGINE SMOKES EXCESSIVELY ENGINE STALLS
SPARK PLUG FOULED
GTS 150 MAINTENANCE SERVICING AIR CLEANER REPLACING THE SPARK PLUG
REMOVING GASOLINE FROM THE FUEL TANK CHANGING CRANKCASE OIL
CARBURETOR - ADJUSTMENT COMPRESSION - MEASUREMENT THROTTLE - ADJUSTMENT
CLEAN THE ENGINE AND RECOIL STARTER CLEAN THE COOLING SYSTEM PREPARING THE ENGINE FOR STORAGE
OHV GTS 150 ENGINE SERVICE MANUAL
Table Of Contents – Page 2 of 4
SECTION I CARBURETOR CARBURETOR DESCRIPTION
CARBURETOR THEORY AND OPERATION CARBURETOR - REMOVAL CARBURETOR - PRESSURE TESTING CARBURETOR - DISASSEMBLY CARBURETOR - CLEANING AND SERVICE CARBURETOR - ASSEMBLY CARBURETOR - ADJUSTMENT
SECTION 2 FUEL SYSTEM
FUEL TANK - OPERATION
FUEL TANK - REMOVAL
FUEL TANK AND FILTER - CLEANING
FUEL CAP - OPERATION
FUEL CAP - SERVICE
FUEL HOSE - REMOVAL
FUEL HOSE - INSTALLATION
SECTION 3 IGNITION OPERATION
IGNITION OPERATION - FLYWHEEL
IGNITION OPERATION - IGNITION ARMATURE COIL IGNITION OPERATION - SPARK PLUG
ARMATURE COIL WIRING - OPERATION AIR GAP - ADJUSTMENT
IGNITION ARMATURE COIL - REMOVAL
IGNITION ARMATURE COIL - TESTING IGNITION ARMATURE COIL - INSTALLATION
SECTION 4 REWIND STARTER
REWIND STARTER - OPERATION
REWIND STARTERDISASSEMBLY
REWIND STARTER - ASSEMBLY
REWIND STARTER - INSTALLATION
OHV GTS 150 ENGINE SERVICE MANUAL
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SECTION 5 ENGINE ENGINE - OPERATION INTAKE STROKE COMPRESSION STROKE POWER STROKE EXHAUST STROKE ENGINE DISASSEMBLY
AIR CLEANER - OPERATION AIR CLEANER - REMOVAL REWIND STARTER. OPERATION REWIND STARTER - REMOVAL BLOWER SHROUD - REMOVAL MUFFLER SHROUD - REMOVAL
FLYWHEEL BRAKE - OPERATION (IF INSTALLED) FLYWHEEL BRAKE - REMOVAL (IF INSTALLED) FUEL TANK - OPERATION
FUEL TANK - REMOVAL
MUFFLER - OPERATION MUFFLER - REMOVAL
DIPSTICK AND OIL FILL TUBE - REMOVAL CARBURETOR - OPERATION CARBURETOR - REMOVAL
IGNITION COIL - OPERATION IGNITION COIL - REMOVAL THROTTLE BRACKET - REMOVAL ALTERNATOR - OPERATION
ALTERNATOR - REMOVAL (IF INSTALLED) FLYWHEEL - REMOVAL
ELECTRIC STARTER - OPERATION
ELECTRIC STARTER. REMOVAL (IF INSTALLED) THROTTLE CONTROL LEVER AND LINK ROD - REMOVAL VALVE COVERREMOVAL
HEAD ASSEMBLY - REMOVAL HEAD - DISASSEMBLY
VALVES AND SEATS - RECONDITIONING BREATHER - OPERATION
BREATHER - REMOVAL
OIL PUMP - OPERATION OIL PUMP - REMOVAL SUMP - REMOVAL
GOVERNOR AND SPLASHER - OPERATION GOVERNOR AND SPLASHER - REMOVAL CAMSHAFT - OPERATION
CAMSHAFTREMOVAL
COMPRESSION RELEASE - OPERATION COMPRESSION RELEASE - REMOVAL CRANKSHAFTREMOVAL
PISTON AND CONNECTING ROD - OPERATION
OHV GTS 150 ENGINE SERVICE MANUAL
Table Of Contents – Page 4 of 4
SECTION 5 ENGINE - continued
PISTON AND CONNECTING ROD - REMOVAL PISTON RINGS - REMOVAL
PISTON PIN - REMOVAL GOVERNOR ARM - REMOVAL ENGINE ASSEMBLY
PISTON PIN - INSTALLATION
PISTON RING - INSTALLATION PISTON - INSTALLATION CRANKSHAFT - INSTALLATION GOVERNOR SHAFT - INSTALLATION CAM FOLLOWERS - INSTALLATION CAMSHAFT - INSTALLATION
GOVERNOR/SPLASHERINSTALLATION SUMP - INSTALLATION
0IL PUMP - INSTALLATION BREATHER - INSTALLATION HEAD - ASSEMBLY
PUSH RODS - INSTALLATION HEAD - INSTALLATION
VALVE CLEARANCE - ADJUSTMENT VALVE COVER - INSTALLATION THROTTLE BRACKET - INSTALLATION
GOVERNOR CONTROL LEVER AND LINK ROD - INSTALLATION CARBURETOR - INSTALLATION
GOVERNOR - ADJUSTMENT ELECTRIC STARTER - INSTALLATION FLYWHEEL - INSTALLATION ALTERNATOR - INSTALLATION
IGNITION ARMATURE COIL - INSTALLATION FLYWHEEL BRAKE - INSTALLATION (IF REQUIRED) MUFFLER - INSTALLATION
MUFFLER SHROUD - INSTALLATION DIPSTICK TUBE - INSTALLATION FUEL TANK - INSTALLATION BLOWER SHROUD - INSTALLATION REWIND STARTERINSTALLATION AIR CLEANER - INSTALLATION SPARK PLUG - INSTALLATION ACKNOWLEDGEMENT