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Harley-Davidson Forty-Eight

Maintenance specs for 1 variant of the Harley-Davidson Forty-Eight — from 2010 to 2022.

20102022 Harley-Davidson Forty-Eight

Evolution 1200 (1202cc) Air-Cooled V-Twin (Evolution 1200) · Belt

66 hp / 72 lb-ft

Engine Oil

Weight20W-50
Capacity2.8 qt

Transmission

Type5-Speed (2010-2016) / 6-Speed (2017+)
FluidHarley-Davidson Transmission Lube (shared with primary)
Drain & fill1 qt
Full capacity1 qt

Brake Fluid

TypeDOT 4
Shop DOT 4

Fuel

Tank2.1 gal
TypeRegular 87

Tires

Front130/90B16
Rear150/80B16
Pressure (front)36 PSI
Pressure (rear)40 PSI

Battery

Group sizeYTX14L-BS
Shop group YTX14L-BS battery

Spark Plugs

Gap0.038 in
Shop spark plugs

Service Intervals

Oil change5,000 mi
Trans service10,000 mi
Brake fluid24,000 mi
Spark plugs20,000 mi
Timingchain (no scheduled replacement)
Air filter10,000 mi
Drive belt60,000 mi