1974 Harley-Davidson SX350 Specifications and Specs

Specifications and workshop reference information for the 1974 Harley-Davidson SX350, including engine, chassis, service data and setup details.

Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.

1974 Harley-Davidson SX350

ENGINE

Engine TypeAir-cooled four-stroke OHV single-cylinder
Displacement344 cc
Bore74 mm
Stroke80 mm
Compression Ratio9.3:1
Maximum PowerApproximately 29 PS at 7,000 rpm
CarburetorDell'Orto | Replacement Options
IgnitionBattery, contact breaker and coil

TRANSMISSION

Transmission5-speed manual
Primary DriveGear driven
ClutchDry multi-plate
Final DriveChain

CHASSIS

FrameTubular steel double-tube frame
Wheelbase1,447 mm (57.0 in)
Ground Clearance203 mm (8.0 in)
WeightApproximately 135 kg (298 lb)

SUSPENSION

Front SuspensionHydraulic telescopic forks | Fork Oil Levels
Rear SuspensionSwingarm with twin shock absorbers and adjustable spring preload | Rear Suspension Setup

WHEELS & TYRES

Front Tyre3.50-19 | Tyre Size Guide
Rear Tyre4.00-18 | Tyre Size Guide
Front Wheel19 in wire-spoke
Rear Wheel18 in wire-spoke

BRAKES

Front BrakeMechanical drum, double-leading-shoe type
Rear BrakeMechanical drum

FUEL

Fuel SystemDell'Orto carburettor
Fuel Tank CapacityApproximately 10 L (2.6 US gal)
Fuel TypePetrol

350cc Other Specs

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