Arch Method 143
Maintenance specs for 1 variant of the Arch Method 143 — from 2018 to 2026.
2018–2026 Arch Method 143
2340cc V-Twin OHV Air-Cooled (S&S 143ci engine) (S143) · Belt
170 hp / 148 lb-ft
Transmission
Type6-Speed Manual (dry clutch)
FluidJASO MA2 75W-90 GL-4 Gear Oil
Drain & fill0.95 qt
Full capacity0.95 qt
Fuel
Tank4.5 gal
TypePremium 91
Tires
Front120/70-R19
Rear240/40-R18
Pressure (front)36 PSI
Pressure (rear)40 PSI
Service Intervals
Oil change3,000 mi
Trans service10,000 mi
Brake fluid12,400 mi
Spark plugs10,000 mi
Timingchain (no scheduled replacement)
Air filter10,000 mi
Drive belt20,000 mi