The McCulloch Service Guide is the same guide/manual that McCulloch DEALERS/MECHANICS used to service your McCulloch Chain Saw. This manual contains instructions for the dis-assembly and reassembly of your chain saw as well as mutiple exploded schematics/diagrams of important parts of you saw. This manual gives you step by step instructions with figures that guide you through the repair of your McCulloch Chain Saw. The McCulloch Service Guide covers items like: * SPARK PLUG * CARBURETOR * IGNITION * LUBRICATION (oil type & mixture ratio) * REPAIRS - PISTON, RINGS, & CYLINDER * CONNECTING ROD, CRANKSHAFT & CRANKCASE * CLUTCH * DECOMPRESSION VALVE * OIL PUMP * REWIND STARTER IMPORTANT!!! Included in this manual is a section covers the Tillotson HL carburator. The CARBURETOR SERVICE SECTION covers: Trouble Shooting, Adjusting, Operation, Overhaul, Dis-assembly and Re-Assembly. Furthermore it contains DETAILED EXPLODED FIGURES AND SCHEMATICS of the Walbro and Tillotson carburetors!