Engine fuel supply and exhaust system of motorcycle BMW R1150GS (1999-2004)

Fuel preparation and control specifications
Technical Data R1150GS Fuel grade Super (premium), unleaded. 95 octane (RON) Mixture preparation Motronic MA 2.4 Throttle stub pipe intl. dia., mm (in) 45 (1.771) Throttle angle in rest position,° 5 Air filter Round paper element

Removing and installing air filter housing
Preparatory work — See Removal of transmission

Removing and installing trottle-valve stub pipe
Press in spring keeper of multi-pin plug for throttle-valve potentiometer (1) and disconnect plug. Note: Do not remove throttle-valve potentiometer unless due for replacement (basic setting is necessary — see Motronic diagnosis instructions). Remove...

Removing and installing throttlevalve potentiometer
Press in spring keeper of multi-pin plug for throttle-valve potentiometer (1) and disconnect plug. Note: Do not remove throttle-valve potentiometer unless due for replacement (basic setting is necessary — see Motronic diagnosis instructions). Remove...

Removing and installing Motronic control unit
Remove fuel tank. Caution! Switch off ignition; disconnect earth (ground) lead from battery and insulate it. Disconnect plug from Hall sensor. Remove Motronic control unit. Remove connector strip. Installation is the reverse of the removal...

Fuel tank and lines specifications
Technical Data R1150GS Fuel tank Tank capacity (usable), l (Imp.gal/ US gal) 22 (4.8/5.81) Including reserve of, l (Imp.gal/ US gal) approx. 4 (0.88/1.06) Fuel pump Type Turbine-wheel pump Make VDO type HPI-3.0 Operating voltage, V 7...15V Fuel...

Removing and installing fuel tank
Remove the seat. Remove side panel. Remove screw securing fuel tank. Seal the fuel feed and return lines with hose clips, BMW No. 13 3 010, and disconnect. Disconnect breather and overflow hoses. Disconnect the plug of the fuel pump. Remove fuel...

Removing and installing roll-over valve
Caution: Fuel is flammable and a hazard to health. Observe relevant safety regulations. Drain fuel tank, if necessary. Remove the fuel filler cap. Remove the reducer unit with roll-over valve (1) and disconnect the hoses. Remove the roll-over valve....

Removing and installing fuel filter, fuel pump and fuel level sensor
Caution: Fuel is flammable and a hazard to health. Observe relevant safety regulations. Drain fuel tank. Remove fuel pump unit (3) and disconnect hoses. Removing and installing fuel filter Release hose clips at fuel filter (4). Caution! Note correct...

Removing and installing fuel distributor and pressure regulator
Remove air filter box. See Removing transmission . Remove the fuel distributor with pressure regulator from the holder. Installation is the reverse of the removal procedure.

Removing and installing silencer and front silencer
Remove rear silencer. Disengage fuel tank and pull to the rear. Disconnect the oxygen-sensor plug and remove the cable holders. Caution! Do not pull the oxygen sensor cable. Slacken the clamps holding the front silencer. Remove front silencer. If...

Removing and installing exhaust manifolds
Slacken the clamp holding the front silencer. Remove fasteners securing exhaust manifold. Remove exhaust manifold. Installation is the reverse of the removal procedure. Caution! After a trial run, read out Motronic fault memory. Note position of...