Engine at operating temperature (oil temperature >= 80 °C).
Remove
Disconnect spark plug connector, remove spark plugs with KM-194-E. Disconnect wiring harness plug from DIS ignition module. Open relay frame cover and pull fuel pump relay (1) out of socket.
Inspect
Use compression recorder with rubber cone and a measuring range of up to 1750 kPa (17.5 bar) overpressure. Actuate starter for approx. 4 seconds with throttle valve fully open – minimum engine speed 300 rpm. The pressure difference between the individual cylinders should not exceed 100 kPa (1 bar).
Install
Insert fuel pump relay in base and close relay holder cover.
Attach spark plugs with KM-194-E to cylinder head – tightening torque 20 Nm / 18.4 lbf. ft.
Connect spark plug connector, connect wiring harness plugs to DIS ignition module.