1961-1974 Harley-Davidson Sprint Models C, H, SS, & SX Service & Repair Manual (P/N 99452-74)

This 157-page OEM publication serves as the definitive technical reference for the 1961–1974 Harley-Davidson Sprint line, meticulously documenting the transition from earlier 250cc engine designs to the later 1974-spec SS and SX builds. Designed specifically for professional technicians and experienced DIYers, the manual provides the exact factory specifications required for accurate diagnostics and restoration work.

• Covers 1961–1974 Harley-Davidson Sprint motorcycles, including C, H, SS, and SX variants equipped with horizontal, air-cooled, single-cylinder engines
• Official OEM publication Part No. 99452-74, revised 3-77
• Features over 70 exploded-view diagrams, extensive chassis and engine tolerance tables, and detailed electrical wiring schematics

Mechanical and Chassis Overview

Understanding the complete mechanical architecture of the Sprint's engine and chassis systems is crucial for any shop dealing with vintage Harley-Davidsons. This documentation details everything from general product specifications and routine maintenance schedules to the complex teardown of the cylinder head, piston assembly, gearcase, and transmission structures. You will find specific tolerances for valve clearances, piston fitment, and bearing assemblies. The reference material also includes explicit data on crankshaft end play and rod alignment. Frame and suspension data provide precise geometry and straightening specifications for the fork and rear swingarm assemblies, ensuring your work aligns perfectly with original factory requirements. Always verify these factory torque and alignment specifications prior to heavy wrenching to maintain structural integrity and ensure safe operation.

Specification Highlights

Having fast access to accurate reference values speeds up daily workshop operations. The documentation delivers comprehensive data tables covering the engine, transmission, and electrical systems. Standard operation engine oil capacity is documented at 2.6 quarts. Intake valve clearance falls squarely between 0.11 and 0.20 mm within the cylinder head specification tables. For 1973 and later engine builds, the ignition timing is specified precisely at 12° B.T.C. Maintenance schedules are clearly defined, mapping out 500-mile and 1000-mile inspection intervals for crankcase oil, valve tappet clearance, and chain tensioning. This makes it an authoritative reference for anyone maintaining or restoring these classic machines.