Vespa GTS Super 300 ie - Service manual > Maintenance chart

SCHEDULED MAINTENANCE TABLE

I: CHECK AND CLEAN, ADJUST, LUBRICATE OR REPLACE IF NECESSARY.
C: CLEAN,
R: REPLACE,
A: ADJUST,
L: LUBRICATE

* Replace every 2 years

MAINTENANCE TABLE - TIME

Checking the spark advance

The ignition advance is determined electronically on the basis of parameters known by the control unit. For this reason it is not possible to interpret the reference values based on the engine rpm.

The ignition advance value is detectable at any time using the diagnostic tester. It is possible to check whether the ignition advance determined by the injection system matches the value actually activated on the engine, by means of the stroboscopic light.

Proceed as follows:

• Remove the spark plug.
• Remove the plastic cover on the flywheel cover shown in the picture.

• Remove the transmission compartment air intake cover shown in the picture.
• Rotate the driving pulley fan using a screwdriver until the reference marks between the flywheel and flywheel cover coincide as shown in the picture.
• Bring the reference mark onto the transmission side between the fan and the transmission cover as shown in the picture.
• Refit the spark plug.
• Refit the plastic cap on the flywheel cover.
• Adjust the spark gap to the contact position (no reference mark visible) and install it on the engine between the spark plug and spark plug cap
• Connect the induction clamp on the spark gap cable respecting the proper polarity (the arrow on the clamp must be pointing at the spark plug).
• Connect the diagnostic tester.
• Start the engine.
• Select the "Parameters" function in this menu.
• Set the stroboscopic light control to the traditional four-stroke engine position (1 spark, 2 revs).
• Check that the real values of rpm and ignition advance match those measured using the diagnostic tester.

If the values do not correspond, check:

• distribution timing
• engine speed sensor
• injection control unit

Specific tooling
  020922Y Diagnosis Tool
  020330Y Stroboscopic light to check timing
  020621Y HV cable extraction adaptor

Spark plug

• Rest the scooter on its stand
• Open the saddle and take out the helmet compartment
• Disconnect the spark plug HV wire cap;
• Unscrew the spark plug using the wrench supplied;
• Check the conditions of the spark plug, make sure the insulation is intact, that the electrodes are not excessively worn or sooty, the conditions of the washer, and measure the distance between the electrodes using the appropriate feeler thickness gauge.
• Adjust the distance, if necessary, by bending the side electrode very carefully. In case of anomaly (as described before), replace the spark plug with another of the recommended type;
• Fit the spark plug with the correct inclination and manually screw it all the way down, then use the special spanner to tighten it.
• Insert the cap onto the spark plug and proceed with the reassembly operations.

CAUTION

THE SPARK PLUG MUST BE REMOVED WHEN THE MOTOR IS COLD. THE SPARK PLUG MUST BE REPLACED EVERY 20,000 KM. THE USE OF NON CONFORMING ELECTRONIC IGNITION CONTROL UNITS OR SPARK PLUGS OTHER THAN THOSE PRESCRIBED CAN SERIOUSLY DAMAGE THE ENGINE.

Characteristic

Electrode gap
0.7 to 0.8 mm

Electric characteristic

Spark plug
NGK CR8EKB
Locking torques (N*m)
Spark plug 12 ÷ 14

Hub oil

Check

• Place the vehicle on the centre stand on flat ground;
• Remove the oil dipstick "A", dry it with a clean cloth and put it back into its hole tightening it completely; Remove the dipstick and check that the oil level is slightly over the second notch starting from the lower end; if the level is under the MAX. mark, it needs to be filled with the right amount of hub oil.
• Screw up the oil dipstick again and make sure it is locked properly into place.

Replacement

• Remove the oil filler cap "A".
• Unscrew the oil drainage cap "B" and drain out all the oil.
• Screw in the drainage cap again and fill the hub with the prescribed oil.

Recommended products

AGIP GEAR SAE 80W-90 Lubricant for gearboxes and transmissions.
API GL-4

Characteristic

Rear hub oil
Capacity approximately 250 cc

Locking torques (N*m)
Hub oil drainage screw 15 to 17 Nm

Air filter

Proceed as follows:

1. unscrew the fixing screw "A".

2. unscrew the nut "B" under the body.

3. remove the left side fairing.

4. remove the helmet compartment;

5. unscrew the fixing screws "C" that can be reached once the helmet compartment has been removed;

6. Unscrew the screws "D" and remove the air filter cover.

Remove the filtering element and clean it with water and shampoo; then dry it with a clean cloth and short blasts of compressed air. Finally, immerse it in a mixture of 50% oil of the recommended type and 50% petrol. Then gently squeeze the filter element between your hands, allow it to drip and then refit it. Oil or water deposits in the filter housing can be cleaned off by removing the two rubber caps "E".

CAUTION

IF THE VEHICLE IS USED ON DUSTY ROADS IT IS NECESSARY TO CARRY OUT MAINTENANCE CHECKS OF THE AIR FILTER MORE OFTEN TO AVOID DAMAGING THE ENGINE.

Recommended products

AGIP FILTER OIL Special product for the treatment of foam filters.

See also: