Suzuki GSX-R 1000 Service Manual: Throttle valve synchronization
Check and adjust the throttle valve synchronization among four cylinders.
- Start the engine and run it in idling condition for warming up.
- Stop the warmed-up engine.
- Lift and support the fuel tank. Refer to “fuel tank removal and installation” in section 1g (page 1g- 9).
- Remove the clamps (1).
- Disconnect the respective vacuum hoses (2) from vacuum nipples on the throttle body.
- Disconnect the iap sensor coupler (3).
- Connect the respective vacuum tester hoses (4) to the vacuum nipples.
- Set up the sds tool. (Refer to the sds operation manual for further details.)
- Start the engine.
- Click “data monitor”.
- Warm up the engine (engine coolant temp. More than 80 °c (176 °f)).
- Click “active control”.
- Click “isc air volume control” (5).
- Click “on” button (6) to fix the isc air volume of four cylinders.
| Note when making this synchronization, be sure that the engine coolant temperature is within 80 – 100 °c (176 – 212 °f). |
|
- Check for the synchronization of vacuum from #1 to #4 cylinders.
- Equalize the vacuum of the cylinders by turning each air screw (7) and keep it running at idling speed.
| Note always set the engine rpm at idle rpm. |
- If the adjustment is not yet correct, remove each air screw and clean them with a spray-type carburetor cleaner and blow dry with a compressed air. Also, clean the air screw passageways.
Note
|
- Repeat the procedures from 9) to 16).
- Close the sds tool and turn the ignition switch off.
- Disconnect the vacuum tester and reinstall the removed parts.
- After completing the throttle valve synchronization, clear the dtc and reset the isc learned value using sds tool. Refer to “isc valve preset and opening initialization” in section 1c .
Isc valve visual inspection
Visually inspect the isc valve if necessary.
Inspect the isc valve for any carbon deposition
defects. Clean or replace the isc valve if necessary.
...
Isc valve reset
When removing or replacing the throttle body assembly,
reset the isc valve learned value in the following
procedures:
turn the ignition switch on position.
Set up the sds tools. (Refer t ...
Other materials:
Precautions
Keep away from fire or spark.
During disassembling, use care to minimize spillage of
gasoline.
Spilled gasoline should be wiped off immediately.
Work in a well-ventilated area.
For e-33 models, drain fuel from the fuel tank before
...
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swerve to avoid an accident.
Many inexperienced riders (and
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only their rear brake in an emergency,
resulting in unnecessary
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Water pump removal and installation
Removal
Note
before draining engine oil and engine coolant, inspect engine oil and
coolant leakage between the water pump and crankcase. If engine oil is
leaking, visually inspect the oil seal and o-ring. If engine coolant is
leaking, visually inspect the mechanical seal and s ...