R1150GS GSA (R21+R21A)

SERVICE DATA Series number: R21 + R21A (09/1998 > 09/2005)

OIL + FLUID CAPACITIES (Litres)

  • Engine 3.75l (SAE 15W-50)
  • Gearbox 0.80l (SAE 80W-90 Hypoid Gear oil)
  • Final drive 0.23l (SAE 80W-90 Hypoid Gear oil)
  • Fork (per leg) 0.47l (10W)  
  • Brake fluid DOT 4

VALVE CLEARANCES (Cold)

  • Inlet 0.15mm 
  • Exhaust 0.30mm

TORQUE SETTINGS

  • Flywheel bolts (Lightly oil bolt thread) Tighten in crisscross pattern
    1/ Initial tension 40Nm (29ft/lb)
    2/ Final tension additional 32°
  • Clutch bolts 12Nm (9ft/lb) In crisscross
  • Engine oil filter cartridge 11Nm (8ft/lb)
  • Spark plugs 20Nm (15ft/Ib)
  • Engine sump plug 32Nm (24ft/lb)
  • Gearbox drain plug 30Nm (22ft/lb)
  • Gearbox filler plug 30Nm (22ft/lb)
  • Final drive drain plug 23Nm (17ft/lb)
  • Final drive filler/level plug 20Nm (15ft/lb)
  • Front wheel axle bolt 30Nm (22ft/lb)
  • Front wheel axle pinch bolts on forks 20Nm (15ft/lb)
  • Front brake caliper bolts to fork 40Nm (30ft/lb)
  • Rear wheel bolts 105Nm (77ft/lb) In crisscross
  • Rear brake caliper bolt 40Nm (30ft/lb)
  • Alternator Poly-V belt preload 8Nm (6ft/lb) **Later versions are non adjustable !
  • Alternator Poly-V belt preload locking nut 20Nm (15ft/lb)
  • Always replace Drain/Filler plugs with new crush washer

IGNITION

  • Electronic Ignition fitted as standard (No Ignition points to adjust!)

SPARK PLUGS

  • Spark plug Part # 120027R (Top plug)
  • Spark plug Part # 120020R (Bottom plug for Twin spark models 12/2002 >)

OR

  • Spark plug Part # 120023RKF (Iridium Bottom plug for Twin spark models 12/2002 >)

TYRE PRESSURE (Bar)

  • Front Min  >  Max 2.2 > 2.5 bar
  • Rear  Min  >  Max 2.5 > 2.9 bar

TYRE SIZE

  • Front 110/80 x 19
  • Rear  150/70 x 17 
  • Tubeless type tyres
  • Minimum tyre Speed rating (R)

DISCLAIMER:

Disclaimer: While every effort has been made to ensure the accuracy of these values and service information, no guarantee is given or responsibility taken for any errors or omissions.