1974-1976 Harley-Davidson SS/SX 175-250 Service Manual (P/N REPR-HD-7476)

• Covers 1974–1976 Harley-Davidson SS and SX motorcycle variants, specifically the 175 cc and 250 cc two-cycle engine platforms
• Official Harley-Davidson publication, P/N REPR-HD-7476, revised December 1975
• Contains 46 exploded-view diagrams, six major maintenance sections, and detailed engine-clearance tables
• Documents build-specific calibration values for the mid-1970s SS and SX road and off-road chassis lines

Manual Contents

This reference provides a structured breakdown of chassis maintenance, engine rebuilding, and transmission overhauls. Inside, you will find detailed workflows for stripping and installing engine units. It covers cylinder and piston inspection along with complete crankcase disassembly. Working on vintage two-stroke platforms naturally carries inherent risks. Always follow the documented factory procedures, particularly when handling carburetor tuning and fuel supply system maintenance, to ensure a safe workspace and prevent accidental ignition. The text also outlines lubrication system flow adjustments. For the chassis, the sections guide you through spoking wheels and truing rims. You get exact steps for adjusting the rear fork and performing brake shoe service on both steel and aluminum hub configurations.

Engine and Chassis Specifications

Getting the tolerances right is critical for these mid-70s engines. The technical chapters deliver precise clearance values, torque requirements, and fluid capacities directly from the manufacturer. Piston-to-cylinder clearance for the SX-175, for instance, is strictly documented at 0.0006 to 0.0018 inches. When tightening fasteners, the cylinder head bolt torque demands 17 to 18 ft-lbs (2.4 to 2.5 kgm). The primary crankcase section requires exactly 2.5 pints of transmission oil. Beyond the mechanical components, this publication also features complete disassembly and inspection data for the electrical systems, making it an indispensable resource for any mechanic aiming for a factory-correct restoration.