Suzuki GSX-R 1000 Service Manual: Exhaust control system operation
The excs is operated by the signal supplied from the ecm. The open/close operation of the excv is performed by the excva which is controlled by the ecm by changing the current direction of the actuator motor. The position sensor (incorporated in the excva) detects the excva movement by measuring the voltage and then the ecm determines the excv opening angle based on the engine rpm and gear positions. Every time the ignition switch is turned on, the excva automatically drives the excv and detects full close/open position voltages and sets the excv to middle position.
Full close
Full open
Exhaust control system description
The exhaust control system (excs) consists of the exhaust control valve (excv),
exhaust control valve actuator
(excva) and exhaust control valve cables (excv cables).
Excv is installed in the ex ...
Other materials:
Fuel pump disassembly and assembly
Disassembly
Remove the fuel tank. Refer to “fuel tank removal and installation” .
Remove the fuel pump assembly (1) by removing its
mounting bolts diagonally.
Spilled gasoline should be wipe off
immediately.
Keep away from fire or spark.
Work in a wel ...
Engine bottom side disassembly
Note
the crankcase must be separated to service
the crankshaft and conrod.
Remove the engine assembly from the frame. Refer to “engine assembly
removal” .
Remove the engine top side (1). Refer to “engine top side disassembly”
.
Crankcase breather (pcv) cover
R ...
Ect sensor removal and installation
Removal
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Drain engine coolant. Refer to “cooling system inspection” in section
0b .
Disconnect the coupler and remove the ect sensor
(1).
Caution
take special care ...