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Yamaha SR400

Maintenance specs for 1 variant of the Yamaha SR400 — from 2015 to 2021.

20152021 Yamaha SR400

399cc Air-Cooled SOHC Single (SR400) · Chain

25 hp / 24 lb-ft

Engine Oil

Weight10W-40
Capacity2.2 qt

Transmission

Type5-Speed
FluidShared with engine oil

Brake Fluid

TypeDOT 4
Shop DOT 4

Fuel

Tank3.2 gal
TypeRegular 87

Tires

Front100/90-18
Rear130/80-18
Pressure (front)29 PSI
Pressure (rear)29 PSI

Battery

Group sizeYTX7L-BS
Shop group YTX7L-BS battery

Spark Plugs

Gap0.024 in
Shop spark plugs

Service Intervals

Oil change6,000 mi
Brake fluid12,000 mi
Spark plugs12,000 mi
Timingchain (no scheduled replacement)
Air filter12,000 mi